I didn't stay at the Bellagio, so this review is not for the hotel stay. However, I was here multiple times as it was next door to Caesars and the fountains are always a draw and I would have to say it is one of the most beautiful and classiest looking hotels on the strip.
I love their check in area - with the open garden view.
I love their conservatory - which changes with the seasons. Currently, they have a under the sea theme and it's quite cool.
I love the Chihuly Glass sculptures and the parasols. So beautiful.
They also have Lago, which if you can get a patio seat, allows you views of the fountain from the other side.