I have used pressure bleeders with my race cars for the past 20+ years without any problems (but no abs to get in the way). With my (street) E46 I used the Motive unit and will use it with the E90. I like stuff that lets me finish a task solo.
I have never had any issue with micro bubbles but I don't doubt it can occur. Here is a DIY for the E46 but the concepts are the same with the E9x.
http://www.bmwm3.org/diy_brake_bleed.shtml