I have had a 1/10 JBJ have a 1/4 JBJ and the Super 1/2 Tradewinds. I like the tradewinds for a couple reasons. I purchased the 1/2 thru Custom Aquatic, discount since they are a sponser, I picked it up will call so no freight charge or damage by UPS, 5 year warranty, the mfg. is local (Escondido) so I wouldn't have to pay shipping to Washington and wait weeks for a warranty repair, and the external controller so if there is ever a problem with it I could run it off my Reefkeeper 2. I had no problems with the JBJ's they are local too (Inglewood) but they seem to restrict flow thru the chillers even in a closed loop.