Very nice -- always worked well. Didn't draw too much power because it was never drawing for more than a few seconds at a time. I don't consider the motor noise an issue either -- it's just another boat noise, and there's no way you're going to get up at 0-dark-hundred and use the manual head without other crew hearing anyway.

The one downside is there was no capability to dry-flush so it uses at least twice as much water as a manual pump. Not an issue if you flush overboard but definitely an issue if using a holding tank.