So I've had the Yuhu for about 2 weeks and have done 500+ solves, and my verdict still stays the same. I've found the nice sweet spot for tensioning and lubing, and I honestly have to admit that it's a great turning puzzle.
However, the size is still too big and it cramps my hands after about 10 solves. While it isn't too hard to adjust, the thing I find most frustrating is something that cannot be changed due to the design of the puzzle, and that is the stickers. The stickers on the Yuhu (factory or thecubicle.us fitted) are a tad bit too small and spaced too far apart from each other due to the design of the pieces. I like my stickers to be fitted next to each other with little room in between. While this may not be an issue for everyone, it's a major issue for me as I can't recognize the colors on the pieces due to the black coloring of the pieces interfering with the overall appearance. This results in me consistently averaging much slower (around 1:15-1:25) than normal with my modded Shengshou (1:00-1:07).
I won't be using this as my main for the aforementioned reasons, but I still do think that this is a really great puzzle for those wanting to get into megaminx. In my opinion, the Yuhu takes the least amount of work to break in and find the sweet spot (just a bit of lubing + tensioning), compared to the Dayan (lots of breaking in + potential modding) or Shengshou (same as the Dayan). If you are interested in starting megaminx or want a cheap option for buying one, definitely get the Yuhu. On the other hand, if you're already serious about megaminx or really want to get serious about it, I'd recommend not getting the Yuhu and getting a either a Dayan or Shengshou, and putting in the time and effort to make it great (hundreds to thousands of solves + modding).
So my overall verdict is: It's good, not great. I don't think it's worth buying if you want to get serious about megaminx.