Mircotech isn't well known for its driveability on the road and you only get a limited number of load/tuning points. There is a reason why its cheap...

Haltech is better, but like I said make sure the tuner is comfortable with it.

Personally I would choose Autronic or Motec, but like anything, you get what you pay for.

Seeming that you're from Singapore I'm sure there would be some tuners there familar with these ECUs.