We finally got around to trying SkinnyFATS tonight. I was a big fan, but my husband is a little more picky and wasn't quite as pleased as I was. He didn't like the cucumber water, and I agree that the flavor was a little strong. I had the Naked Chix and my husband had I believe the Wake N Bacon (breakfast sandwich). I thought my meal was awesome; my husband's only gripe about the sandwich was that it had onions and the avocados were sliding off. He said the breakfast potatoes didn't have much flavor.
The girl who served us (didn't catch her name, unfortunately) was super kind and explained the whole menu and concept of the restaurant to us. I definitely plan to go back and try some of the "happy" menu items as well as some of their juices and cookies. We only got checked on once during our meal, but because the drinks are self service and you pay when you order, that's to be expected.
I would recommend checking out the menu before you go to get an idea of what you want; I felt like I was rushing my husband because another couple had come in behind us and I didn't want a line to build up.
I thought the atmosphere and decor were super cute. I get sick of all the chain restaurants here in Vegas, so SkinnyFATS is definitely a welcome addition to our 'hood. I'm just sorry I waited so long to give them a try!