I think many people are in a similar spot - they are interested in interactive stuff like this, but the really good things dont get any marketing to the mainstream. The handy is one of the two top devices I would recommend. The other (and arguably best) is the OSR2. The only downside of the OSR2 is that you can only use it with anything that fits inside a fleshlight case (for now atleast). The handy’s biggest pro is that it lets you use many kinds of onaholes as far as I know, because it uses a strap to mount them onto the unit.
The Keon is very, very lack-luster compared to these two. I myself own one, because it was the best option I had known of at the time. Considering that I could have gotten a OSR2 for almost the same price, it was indeed a giant waste of money. And thats with it working flawlessly for me so far (almost half a year), I didn’t even have issues or had to do anything with the warranty, and I still feel that I wasted money on it.