Wavebox, good or bad?

[Casey8]

Every web site I have read it says will reduce about 1/3 some said 1/4 life of your tank ... whatever ... I want to get one for myself in the future anyway. Just don't make it over half inch waves, I think my tank will be OK for another 8 years. I don't want to look my fish are dancing back and forth with waves, it makes me dizzy just to look at the fish from some other people's tank.