I did a good bit of reasearch into these uv sterilizers and this one was a good price of the bat. Initial review, id say it was sturdy and made of good quality components. Iv had it running since i got it and a year later its still going strong. As far as ug sterilization quality i did notice a reduction in algae and my tanks overall health has improved but i have done other things with this to solve algea issues but, that was initial, now here a uear later i have not had any major algea spikes. I clean it every couple months and it works great. Great over all product