My wife and I traveled to South Beach in May 2011 to celebrate her birthday, and had a wonderful stay at The Betsy. The room was small, but wonderfully furnished, and the bed was as comfortable as you could ever hope for. Having a television literally in the mirror in the bathroom was quite a unique touch! We spent 3 nights there, and attended a Miami Heat playoff game, and the concierge (don't remember his name) was wonderful in directing us to places following the game that were more subtle and laid back, as opposed to the loud clubs available along the strip.
We enjoyed breakfast each morning on the sidewalk outside the hotel, with absolutely beautiful views of the beach and ocean. We even meeting a few celebrities walking down the sidewalk past the hotel which only added to our total experience.
On her birthday we did a couples massage at the rooftop spa, and again enjoyed beautiful views and wonderful service from the staff. Our stay was perfect for what we were looking for, and we are excited about returning again next spring for another getaway.