After driving the car with the mafless tune, I think I should have done it from the start. Car is more responsive, more peppy and the gas pedal input feels more inline with engine response than stock or 330i tune. Only downside is the cruise control not working. Car is on stock maf sensor.
Another thing I quite liked is that, on cold starts the mafless tune starts up like a normal 328i would. The 330i tune tends to rev the engine to almost 2k upon cold start up. Maybe it was only for my car but It particularly bothered me specially on a dead cold engine.
For example in this video upon start, instead of revving to 1300 at first it'd do 1800.