I just got back from my trip to Las Vegas. I had a convention at the Mirage, and I stayed next door at Treasure Island. They have a tram that leaves from the 2nd floor (indoors) that leads to the front door of the Mirage. Very convenient.
My room was very nice. Good comfy bed and was extra clean. Maid service was very good too.
I liked that they had security at the elevators that had you show your room key. I felt a little safer since I was traveling alone.
Lots of restaurants and bars, conveniently located on the strip, pool, large casino (I did good at the slots there), exercise room, and several gift shops. They even had a $10 shop that sold all kinds of great things.
I'd definitely stay there again. It was a nice stay!