There's a ZEM thread around here somewhere that's probably one of the longest threads we have, if not the longest (go figure for a bunch of barefoot runners), if you want to look it up for opinions. Also, check the Product Review section up top.
I think I have moral issues with the beach one. Seriously shouldn't wearing shoes of any type on a nice sandy beach be illegal? Maybe if it were cold I could excuse it, but their clothing isn't exactly the sort I'd wear in the cold.