I have tried Tunze, Maxijets, Rios, Reagents, and a few other kinds that I can't remember the name to and so far Maxijets have been my favorite. I have not had any problems with them and they come with cool mounting kits (2 different mounting kits came with mine). You can even adjust the direction and even angle with parts the pump comes with (but not side to side). I also like the power ranges you can get with maxijets but all in all it is just personal preference.