Pretty Good
I liked the game, it was a simple concept but very well executed, what I didn't like is levels when buttons moved, especially randomly, otherwise it's fine once I've played it a few times.
The only thing that stopped me playing was that (No fault of your own) my mouse is a piece of sh*t and whenever I managed to get it over the right button in one of the tests in Level 2 it always failed me when I pressed the big orange button, i had already done evrything else and it happened about 3 times before I got annoyed... If my mouse was better though I probably would have kept going.