I think the same thing when I read their reviews. I bet none of them are real.
You might search the board. I remember a discussion a few years ago. Seems like they were not that breathable.
I bought a pair from LL Bean for $60 around Christmas that got good reviews in a magazine. Honestly, I haven't even tried them on yet, but like I said, they got a good review in Fly Fisherman I think. Plus, they have a lifetime warranty, something BP probably doesn't have.