I am very happy with my 3.3 I have found it holds a tune much better than any 2.5 I have had. But it is still a touch motor. You have to make your adjustments very small compared to other motors. That is why some people just don't like them.
For the money the 3.3 is the way to go in my book...for a bashing motor.

For racing I use a RB V.12