Personally for myself my new skimz is a bit touchier then my SWC skimmer but once it's dialed in it seems to work well. BTW the trick with the skimz is wrapping a bunch of elastic bands around the part you turn to dial it in. I found the vibrations going through the skimmer kept turning the dial up which made it impossible to dial in, until Doug put a bunch of elastic rubber bands around it to hold it into place.
That being said my SWC has always worked well and I have no complaints other then the stupid askol pump (which is supposed to be the best-same pump as bubble king) died on me way before it should have, and it was a huge PITA to find a replacement for it.
As for acrylic quality, both skimmers seem pretty much the same to me, skimz might be a bit thicker but I'd say they're fairly close in comparison.
Although I'm not much of an equipment person so I'm no expert, I'm just happy it works and works well
