I've had a Mity-Vac forever and it's fine for pulling fluid through a newly plumbed motorcycle brake system, but not much else. Actually, pushing the fluid up from the bottom with a big syringe is better...
When I started doing track days w/ the M3 though, regular bleeding became a thing. I bought a Motive and it's the greatest thing ever invented. The day before an event I put the car on stands, pull the street wheels off, and swap all the street brake pads for the track pads. Then I dump a can of ATE Super Blue in the power bleeder, hook it up, pressurize to 20 psi, and start at the R rear. Put the catch bottle on, open the bleeder, stop at 1-1/2" of fluid in the bottle. Follow with the L rear, R front and L front. Disconnect the power bleeder, pump the pedal back to hard, use the Mity Vac to suck off the excess fluid in the reservoir, put the track wheels on.
Whole deal takes well under an hour, an hour if there's an oil change.