Go big or go home. Don't freaking even bother going to Vegas unless you're going to stay somewhere high class like Encore. Yes, even if you're going to spend the entire weekend drunk and you claim you won't remember anything. It's STILL worth it.
Encore is all about the little details that make your trip perfect. For example, putting your name on your room key and making it also your players card. "oh now I feel special and appreciated and it's that much easier for me to gamble. Thanks!"
Another plus-- the whole place is decorated in that big, over-the-top Las Vegas way we all love. gardens in the main lobby, five bajillion mirrors in the hallways so you can check yourself out, and art all over the place. Even when you're lost looking for the elevators back to your room you'll stay entertained just by looking at the walls.
The pool is fabulous, as you would expect. The 21+ pool ensures you won't spend your Saturday afternoon sitting next to a mom in a Mickey mouse Tshirt with her six kids-- you'll be sunbathing with the beautiful people.
I'll definitely be back on my next trip!