This cube is fantastic. It isn't the best cube as a speed cube, it feels a bit like an RS3M, but a little slower.
However, it's definitely good enough for beginners & intermediates+, and the App is what makes this cube amazing.
In practice mode, it gives you a scramble, and simulates inspection, and starts timing as soon as you start turning the cube, and time stops when the cube is solved.
The results can show you how much time you spent in each phase: Cross, F2L, OLL, PLL, and even AUF.
It also supports Roux and I forget the 3rd option; I don't think its ZZ, it's probably Petrus.
You can change this after the solve to see the results in different methods, or set it as a default in the settings (though I'm not sure if it works, I didn't try that).
My only complaint is you can't disable WCA inspection, so you only get 15 seconds to analyze the cube before starting the solve, otherwise it gives you +2/DNF.
It seems like there is an option to disable it, but either it doesn't work, I am doing something wrong, or it's doing something else.
It's translated from Chinese, but I didn't run into any major translation issues that hindered usability.
Especially for such a cheap price, this is probably the best tool you can buy if you want to improve your cubing from ~ 2 minutes to sub-20 seconds or beyond.
