I currently have a Microtech LT10s tuned for a CA that I might be happy to part with for the right price. But ill try to make this unbiased :)
These are at the very cheap end of the ECU market.
They are very good at wide open throttle but really do lack some refinement with compensation tables that others have.
The idle control could be better also, works reasonably well but is not as smooth as others. I find the PWM ciontrol in these ECUs hunts a bit with my CA, you could probably fiddle with it to get it better but i have spend many hours to get it this good.
After sales support is almost non existant with Microtech. My understanding is the re-seller in newcastle handles most of the repair/reconfig work on behalf of the company.

I am upgrading to a Motec M84 (Race car), I am looking to add a lot of sensors to the car for logging purposes and need the extra inputs and CAN communications.

Overall, I did not have any issues with the microtech in a street car. The engine made very nice power 330rwhp @22psi and was fine on the street.

With any of these ECUs they really are only as good as the tuner tuning them. My recomendations is to pick a tuner first and work with them on the ECU solution.