I have tried almost all the cube timers on the App Store, and this timer along with others share a common flaw: scramble notation. The 2x2 notation should only use R, F, and U moves. Also, it is a little inconvenient to change the stats to whatever cube you need. However, there are definitely good features of this timer. There is an essential inspection option, inspection noise option, the ability to choose the scramble length, and an incredible design. But the big thing is, all good cube timers have these things. There is nothing special about this one. But overall, this is a great timer.