I have mostly tunzes and one MP40. Both have their pros and cons. I bought the MP40 because it was a smoking deal and the spot I wanted it in looks better without seeing the cord in the tank. Flow shmow though, I don't see a diff between the tunze and vortech (although I don't have the vortechs nor tunzes on any kind of fancy flow setting) and I like being able to position the tunzes and my tank doesn't accommodate much space for non-angling powerheads.
That being said, I got some killer deals on used Tunzes when everyone jumped on the vortech bandwagon a couple years ago. It was awesome
