I have the 150w version and I actually like it quite a bit. It is very sturdy when properly attached to your tank, I have no worries that it will loose it's grip and fall in the water. I will say I have not had good luck with the bulbs though. The one that came with it was DOA, and then the other night after 3 months of running with no problems, the bulb just exploded for no reason (all covered under warranty, but still a PITA). I am contemplating buying another one actually for a new tank I am starting but may go with T5's instead.