The Hassler is an incredible institution. Their recent upgrade and renovation seems like it's going quite well. The service is absolutely top-notch. Staying at the hotel is an absolute joy. The view all the way across Rome of the Vatican from bed was absolutely storybook. The staff is charming and cheerful.
Getting room service there, although it may cost a day's salary, is out of this world: two men hustle in with a table and it's an enormous production and totally delightful.
They also have the largest elevators in Europe. (No, but seriously, you can fit five people and a suitcase in them!)
I imagine it's exceedingly difficult to pull a storied hotel into the 21st century, particularly in Rome. They are doing an admirable job of it. On my next visit, I'm sure they'll have licked the Internet problem entirely. (No, we certainly did not spend 15 Euros a day for the Internet. It's 2013! Goodness no. But I can forgive them for this.)
Don't miss: the tucked-away bar on the ground floor, with its secret glassed-in smoking area. Also: the patio off the gym is one of the single best vantage points to view Rome.
Can't wait to return.