Just did a two night stay here and was really impressed with the team at this property. GF and I were there when Obama was at the hotel, and aside from the giant crush of people waiting outside the doors to see him, we didn't notice much disruption. Security was tight and there was a slight language barrier at times, but by the end of our stay they all recognized us.
The breakfast buffet was quite good, and very well stocked. I'd rather eat in the cafes around the hotel, but it was quite good for us before we took the train to Rome. Buffet cost was ~€40 for non-Globs. No idea what the menu prices were, but the waitress asked us "why didn't you order off the menu?!"
Can't wait to go back there.