So, we spent one night at SLS during our recent trip. It was A-OK for the price and purpose of our stay. We have reserved a property about 3 hrs out of Vegas and didn't want to make that drive as soon as we landed. So we decided to just book a fairly cheap hotel room for the one night and then drive out to Utah the next morning.
We booked SLS via a discount website, so for the price we paid for, I think it's A-OK. But if I had to pay more, I think I'd not be so "Ok" with it. First off, it's an old building renovated to give it a fresher new look. Nice effort, but not quite there to try and sell it as a four star hotel. The room we got was sooooo small. To save space, there is a single sliding door that opens up the bathroom. When the door closes, it reveals the sink. So you really need to communicate when you are coming out of the bathroom so you don't accidentally take out your significant other or room mate. Otherwise, the decor is not so bad.
The casino is small'ish when compared to other big name casino's on the strip. But still not bad and has all the necessary stuff. The cafe downstairs to get coffee and baked goods is pretty good and decently priced. We actually got a cup of coffee and some desserts there after a late dinner and sat there to people watch... no joke, that was VERY entertaining....