Well, everyone online talks about how after letting off quickly under boost, it will start to fall on its face like it wants to die...my car does NOTHING like that. When I dynoed, I ran 12.1 AFR's across the sheet and occaisionally at WOT at high speeds, she'll get a little rich, but no harm is done and it is my daily driver as well. To answer your question, it runs great.
The first day or two have having it vented, it was sort of hesitant after getting off boost and acted weird, but after the ECU got familiar with it...it's just fine.