I guess it kind of depends on the purpose of the gear you're looking at. I have a Voodoo jacket that was a gift from an employer (company logo embroidered on it and everything). It keeps me dry and doesn't bother me or anything, but it's hardly what I'd call quality gear. The pocket zippers broke clean off less than a week into it's use. I don't trust those UTG optics any further than I can throw them. That being said, I've used UTG rails on a couple of AR builds, because they fit the purpose and the budget. They aren't battle rifles by any means and I have little doubt that some serious use would probably fuck them up good.
The stuff that drives me crazy is that NCStar garbage that is marketed to airsofters, then finds its way into random "tactical" catalogs and shops. It's shoddy aluminum, crap glass, weak nylon and general crap.