We stayed at the Hassler for a week between christmas and new year's 2012. For a 5-star hotel in the heart of the city, we cannot recommend this hotel enough.
The hotel is in a perfect location at the top of the Spanish Steps. The views are fantastic and many historical sites, lots of shopping and other places of interest are only a short walk away.
We found the staff at the hotel to be excellent. They are very attentive, well-trained and exceedingly capable. They seek to ensure every guest is happy and they succeed.
We stayed in a street-facing grand deluxe room which was very comfortable and gave us a nice view of the city. The rooms housing the classic or more elaborate suites likely had the better views, but we were happy nonetheless. Rooms have great robes and slippers which are welcome after exploring the streets and sites for hours at a time.
The staff working the breakfast buffet in the Salon Medici were outstanding. By our second day, they knew our preferences, etc. My wife and I didn't have to ask for our coffee drinks to have soy instead of cows milk after our first breakfast. Nice!
Overall, we had a great stay and would most definitely recommend this hotel to anyone that wants great service in a perfect location, particularly anyone who is visiting Rome for the first time.

This hotel is one of the best I've every stayed ! While visiting Rome we decided to stay at Hotel Hassler and we did not regret it ! Yes, it is expensive. But if you want the very best, this is the Hotel to stay.

We stayed for 3 nights from Dec. 12th to the 15th. Driving to the Hotel is an adventure as is any driving in Rome. However, once at the hotel, the staff and in particular Alexandra was extremely helpful about the hotel and the area.

Up front, most things are extra. Parking was 45€/day and internet was 15€/day. That is just the way that it is. While I would have loved to have had it rolled into the room price (especially the internet), leaving it out allows one to opt in or out. I liked having the choice. Oh, I had no trouble with the internet.

Our room 222 was in the back and was beautiful and quiet. The bathroom was spacious. My only small complaint is that the king size bed was actually 2 twins together. While they did a great job to minimize the seam, I was still able to find it. The cotton sheets were of a high thread count and with the down comforter was luxurious. The complimentary water was nice. We ordered up ice each night.

We did have the breakfast which cost ~40€. It was wonderful to have each day. A great selection of sweets and juices. I especially enjoyed the fresh carrot and orange juices. There was a selection of prosciuttos and smoked fish (salmon, tuna, & swordfish). The eggs were a little runny for my taste and the bacon was a bit greasy. I did enjoy the sausage, pancakes, and french toast. Service was impeccable. We sat down and almost instantly got perfect cappuccinos. This was a fantastic way to start off the day. It allowed us to forge past lunch and beat the crowds.

The location at the top of the Spanish Steps allowed us to walk to great restaurants and the sites from the Colosseum and Palatine Hill to Vatican City. Best of all, we were right above the main shopping area.

Lastly, the doorman helped me pay for my car the night before and allowed us to leave with plenty of time to get to the airport in the morning. Their directions were flawless. Service was all around fantastic.

We didn't get to try the spa, but they have a sauna and steam room connected to a pretty good workout facility.

This hotel does cost, but you get every pennies worth.

I stayed at the Hassler Dec 6-9th and it is by far one of the most amazing hotels in Italy, if not the world. We were upgraded from a deluxe to grand deluxe with the most amazing views of the Spanish Steps and city of Rome. Alessandra and Carolina in reception went above and beyond to make sure our stay was the best. Danieli, the concierge was very helpful and friendly.

Thank you Hassler staff for your hospitality and the next time I am in Rome, I will without question, book a stay with you!