i have a fishneedit light. had it for a long time now and it still works good. It isn't the best light in the world but on a 30 Gallon, i have a 36" T5 4x39w fixture, like 2 years old now. Doesn't have individual reflectors, just one parabolic reflector. that is the downfall of it. eveyrhting else is fine with that fixture.
In my new setup though I am using halides. In the long run the t5 from there wasn't enough for my desires. fixture is still running and keeping anemones that split. soo... it works
hope that helps