I got one a while back for the same purpose... I didn't know what to think of the Mityvac when I tried it. I imagined it pulling a ton of fluid really quickly and cleanly from the bleeder screw, but what really happened reminded me of Phantasm II where they plunge a syringe into the Evil Old Man and turn on a pump and a bunch of mustard-looking stuff splats into a canister. It was kinda like that. But with lesser results. The hose that the fluid had to travel down was big, and the nipple that fits into the bleeder screw is tiny, so I guess that makes sense. In the end I gently put the Mityvac down and went back to my $3.99 one man bottle thing.
