theres been alot of threads started on this but ill chime in again , im extremely happy with mine i have a 150 gal and ive been using the fishstreet wavebox for 2 years now with no problems and leaves no dead spots anywhere also hell of alot cheaper than the tunze. and just to back it up in case even thou i dont need to i pick up a used tuze nano wavebox to compliment it which is also great my doesnt come close to the power that the fishstreet puts out hence the nano title.....if ur going to spend the money get a wavebox regardless of the brand and screw all the powerheads i would never switch not even to the mp's