i've been using 2.3 from the start. 2.2 vs 2.3 is just software changes - basically the way you SEE the data... it has nothing to do with how the data affects the car. that's why you write the data to the ecu.
I'd say 8 times out of 10 they were due to installation error and bad tunes. I've been using map-ecu on my car for several thousand miles now...I did bitch a lot about it publically, but always before learning how to use it correctly. it works for me..but now i want timing control heheh so i'm leaning towards AEM.