Being in the autumn years of my gaming career, I managed a 0.239 average with a 0.222 being the fastest.
As with all tests like this though, there is always a flaw in the concept. Although this test says it meaures you reactions, it only really tests the reaction of your finger on a mouse button. You could still have quick reactions, but fail this test. For instance, 100m sprinters have awesome reactions, but never use their fingers.