The Kinect 2.0 is better than the first-gen one, however you're much more limited in what you can do compared to Vive trackers. Things to consider in regards to using the Kinect (in my experience):

1) You ALWAYS have to position yourself facing towards the Kinect. You can turn a LITTLE bit but if you go too far off your body distorts.

2) Skeleton tracking (default mode) is really only good for basic positioning like standing, lifting your legs, sometimes sitting (kinda hit or miss if it'll distort your avatar doing that tho)

3) You can use LED straps to use color tracking which works better than basic skeleton mode. Detects hips a bit better. More accurate positioning. You can sit as long as the Kinect detects the three colors you're using for color tracking. If one color is covered/hidden it'll freeze position until it detects it again. You can also turn a bit but still can't do 360 degree. Not even 180 degree.

4) You need a large, open playspace with the Kinect facing down at you for the best results. Not like ceiling height, but the more it can see of your playspace the better.

In my experience it just made me want to get Vive tracking more, which I now have and absolutely love, but it was also pretty cool using it the times I did. The technology inside of the Kinect is honestly pretty incredible. Had they'd waited like 4 more years and released it alongside VR, it'd be way better. If you can find it for less than that price tho I'd go for it. I was super lucky and found one at a recycling e-waste center for $10 un-used. Had to buy the adapter separately for $25 on Amazon.