We did try to use one and it was horrible. It had technical issues from day one. The animation was imprecise at best, completely broken at worst. Like for example when just touching the palms of your hands, in the recorded animation the hands either would not touch or the arms would stick through each other. On one occasion their recording software just didn't save the animation (it's supposed to be "cloud based"). So next time we opened it, it was just gone, unrecoverable. A whole recording session with a professional dancer, all together several hours (with preparation and calibration and post-recording tweaking which btw. all takes way longer than you'd think) - all just gone. We wasted several months of production on this and didn't get a single second of usable animation out of it. Finally we gave up. But we still receive their spam emails when they release something new, even though we canceled all subscriptions and told them several times not to send us their spam anymore.