Everyone that has one says they are the best skimmer and worth the money but, I have yet to have someone explain to me what sets them apart from other skimmers. The only reason anyone has given me is the build quality is second to none, I have an AquaC EV-180 and its very well built and has been extremely reliable and consistant in skimate production so I can't justify spending 4x more money only to get a little better built skimmer that may or may not perform better than my current skimmer.