I was about to start a new thread but saw old thread because I got a new pair from http://www.footweartop.com/best-waterproof-work-boots/
last week. These are extremely light weight and very breathable. Perfect for warmer weather. Some other reviews have stated that the traction on the boots are poor, but I would disagree. I have thoroughly abused these boots, including walking across wet, and mossy rocks and don't find the traction to be any different than any other form of footwear. That type of terrain is just dangerous to walk on in the first place.
These are exceptionally comfortable and had no real complaints after having them on days at a time for 14+ hours. These boots are, however, slightly narrow, and about half an inch small compared to other boots I've worn.. Including my other Irish Setter boots.
Recently I've taken these to some very rugged desert terrain which has has very thick Cholla Cactus growth. These stood up very well, except for the cloth portions on the side. A cactus spine punctured all the way through into my foot (very painful!). I don't really fault the boot for this, as it's probably needed for breath ability, but wanted to remark on this.