I run 2 tunze 6095's on the back wall of my 120 and 2 jebao ow-25's on the sides. All running at 100%. Wanted to see how long the jebaos last at $100 for 2. 7 months in on pulse mode they are heavily encrusted with coralline and working well. With that said I am always looking for a deal on used tunze powerheads. Cant say I would by a used jeboa.
If you have the cash higher end powerheads are the way to go imo.
Here is a pic of the jebao I just took. The tunze look the same. I clean them once a month in old tank water and no acid. Eventually the will need to have the coralline removed.