I use the Motive bleeder and like it a lot for routine flushes. I have had a few vehicles where I had trouble getting all of the air out of the lines with it after changing out multiple components, including the master cylinder. In some cases, I've had to resort to the old two man pump and hold method to get every last bit of air out of the system.
But, for routine flushing of a system which hasn't been cracked open, the Motive system is great; especially if you have a European car with the standardized reservoir cap.