love my wavebox. 3 years in my 90gal, almost 2 in my 180
I'm plugging my ears and doing the "lalala" thing about the reduction in tank life though. My used tank has an unknown number of years on it and I shudder at the thought of having to take it down in the next 5 or so years (although the 15-20 years tank life talk was encouraging, I thought it was much less).