OK I bought Perception Neuron and had it for about 8 months. 
Now I love the fact that i can do so much mo-cap by saving time compared to just key framing everything.
With that I do have to do some editing which I don't mind, However lately my suit has been kinda off.
Were when I calibrate the suit some of the fingers are bending when I have my hands relaxed. And sometimes my avatar torso
is turned when I'm standing straight. Which sucks because I have to do more editing then i want to, But still would do.

I saw that reallusion was talking about this new mo-cap product Xsens. My question is this more accurate than Perception Neuron?

According to freelance.... it is more accurate.
Note: Sensors don't last forever.
The more expensive ones.... last longer.

Xsens doesn't have finger gloves...yet
But the Xsens suit itself is more expensive, and if you gain weight, I don't know how much it stretches.  Also, if you get mess on it, you are taking a big risk throwing it in the washing machine. 
Anyway, even if more accurate, you may still have to touch up to get it perfect?  

With your PN suit, could you switch some of the neurons around (ie trade places with some) to see if some are 'bad'?

Xsense are the top of the line suits (along with its premium resolving software).  Perception Neuron is the barebones minimum.  But are a few steps in between that you might want to pursue:

The Motion Shadow suit :  This suit is very very interesting.  Besides having direct streaming plugins to various industry apps (sorry, no iClone yet, but it spits out .bvh and .fbx motion data for all apps to use), it offers a system completely independent from your computer.  You can don the suit any time and anywhere and it will record the data to any WIFI device for an almost limitless time span.  The website seems professional and they offer sample raw data but I have yet to see any independent review of this suit.  It's not really surprising since mocap is really a very small niche market.  You won't find many youtube DJ's giving reviews on mocap suits.  But its an American company, they are not newbies, have great features and the price is right.

Rokoko Smartsuit Pro :  This suit shows great promise.  The website shows impressive things.  But it's hard to get one because they sold out their first batch shortly after coming on the market.  This is another freedom of movement suit that doesn't tie you to a room.  I hope it lives up to the hype because the price is golden ($2500)

Ikinema Orion :  This is the one I am leaning to at the moment.  I will probably make a purchase in September.  The main reason is the convenience factor.  The sensors are HTC Vive controllers and headset.  They don't seem to need calibration nearly as much as I observe with the Neuron.  There is no suit to get into, just pick up the controllers and put sensors (small black box similar to controllers) on your feet and waist and put on your headset.  The demo data looks fabulous, requiring almost no cleanup.  And the price can't be beat.  The software is $500usd (per year) and the hardware is the HTC Vive VR gear.  So if you have the Vive, you just need the software to start creating professional quality mocap.  If you don't have a Vive, adding the cost of the VR system to the software price is about the same as a Neuron suit, but without the Neuron hassle.  One of the drawbacks is you are limited to the 3 square meter space of the Vive lighthouse setup; basically a 12 x 12ft. room.   But the price!  And you get to play great VR games as a bonus!

Maybe there are more options, but these are the ones that I consider to be in hobbyists territory.  I am trying to prolong my decision as long as possible due to lack of independent info (the latter two systems just hit the market).  I'd like to be able to justify the Motion Shadow suit, but I will probably go with the Orion.


<edit>.. I've been in contact with a rep from Motion Shadow.  He said they offer a $1000 discount to hobbyists or indie studios.  Making my decision more complicated:Whistling:

Since you mention Orion I would be remiss if I didn't also bring up iPisoft, one of the best software solutions on the market.  Their dual Kinect (or you can use Vive) systems are flawless and offer capture with almost zero cleanup.  You aren't limited to any certain area, either -- you can use them in a gym if you want (with more Vive units as well).  Like Orion, a per-year software price but given I can also use it in my tiny studio it works for me (they have a one-Kinect version that works well for those captures not involving body turns).

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Alienware Aurora R16, Win 11, i9-149000KF, 3.20GHz CPU, 64GB RAM, RTX 4090 (24GB), Samsung 870 Pro 8TB, Gen3 MVNe M-2 SSD, 4TBx2, 39" Alienware Widescreen Monitor
Mike "ex-genius" Kelley

I forgot about iPisoft.  I didn't know you can use Vive now.  I will have to check that out.

I believe it does -- it uses some other cameras other than Kinect (does Sony make the Vive?   Seems to me it's a Sony camera system they can use).

The only thing I'm not crazy about is the calibration -- it takes a few minutes to set it up -- but I guess that's almost true of any system you use.  But the clean up software can't be beat (I truly couldn't get the capture any cleaner even with Motionbuilder).

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Alienware Aurora R16, Win 11, i9-149000KF, 3.20GHz CPU, 64GB RAM, RTX 4090 (24GB), Samsung 870 Pro 8TB, Gen3 MVNe M-2 SSD, 4TBx2, 39" Alienware Widescreen Monitor
Mike "ex-genius" Kelley

I actually looked at iPisoft several years ago. I really like that system. Just didn't have a good space for it at the time.

Neuron has WiFi... for my first test I walked around my living room, through two doorways, down some stairs, out the side door, jogged to the back of my garden (100') and ran and jumped back to the house and inside - I finished the capture where I started... which looked around a metre different - perfectly acceptable under the circumstances.  Stairs look weird as you never actually leave the ground plane - not too difficult to remedy.  You can now record to an SD card without the restrictions of WiFi... maybe a half marathon or climb a small mountain ;-)  Don't underestimate the value of finger capture - they are the 'second face' of human movement.

Agreed, I have the perception neuron system and have only used it a little so far. It works quite well. Seems to have trouble with losing calibration under jarring type motions or in a place with a lot of ferrous material ( due to magnetic interference).  But when you keep these things in mind it works great. and yes the finger motion capture is nothing to overlook. My only concern with the SD would be (example of climbing small mountain) if it lost calibration and your capture is obscured. But with my limited playing with it. still should be adjustable...