Worked surprisingly well
The pump would stick a little when I first started using it but that quickly went away. It did an excellent job reverse bleeding the brakes and resulted in a firmer pedal. If call it money well spent and is much faster and easier than old school bleeding with a friend stepping on the brake...
It didn't work out for me
I tried to use this on a stuck bleeder valve, but still could not remove it. My conclusion is if you try heating and taping the valve and it wont come out, then it probably wont come out with this thing either. This is a pretty simple tool and way over priced. I can't figure out what the 0rings are about, it's all one piece with groves in it for the 0rings. I gave it a two star because I figure with all the vibration and tapping it should help remove bleeder valves, but it didn't work out for me