After spending only one night at The Delano on my recent trip to Vegas, I left feeling happy with the experience.
The rooms are very large, with a separate living area and half bath off of the bedroom. The beds are comfortable. And boy did I love the bathrooms (with HUGE soaking tubs, glass enclosed showers, and double vanities).
I found the finishes in the rooms to be pleasant. The gold flourishes were a nice touch, and not too overdone in my opinion. I also enjoyed all the seating and cool lamps found throughout the room.
As far as the rest of the hotel goes, I enjoyed the lobby and the look of the restaurants. This place feels classy and upscale.
I didn't interact much with the staff (you can check out via email, yay!), so I can't comment much to that.
Would I return to The Delano? Sure. Even though you don't spend much time in your room while in Vegas, I liked the feel of The Delano and I'd be happy to come back.