We stayed here for five nights in a superior double. The room was spacious and had a lovely balcony. The location of the hotel is wonderful for sightseeing. It is just a few steps from the Piaza Popolo and about 2 mins. from the Spanish Steps.
The staff were very knowledgeable and helpful, suggesting great restaraunts and making reservations for shows.
The room is decorated in an empire style, all in yellows with uphostered walls. The only downside is the internet connection which costs about $20. a day.
Breakfast is served in a nice room, and was quite extensive for a "continental" one. Lots of breads and sweet rolls, cheeses and cold cuts, yogurt, fresh fruit, etc, etc.

Thoroughly enjoyable stay in a lovely, intimate, hotel.

Room had a terrific balcony with super views, was very well appointed.

Staff were v friendly, knowledgeable and professional. Great restaurant recommendations.

Location is top class.

Breakfast was good (and complimentary). Tip - the earlier you are up the better it is, as your fellow guests take all of the better offerings.....

The roof garden is super - although we preferred our balcony. Take breakfast up if the weather is good.

Negatives, if I’m being pernickety - and remembering the limitations of the buildings in central Rome - internet connection wasn't great and no 24 hour support available due to it being a small hotel (although technician sorted it the next morning), lift is very slow and small - but hey, what's the rush, power of shower is only ok.

However all in all, 5/5.

My husband and I just returned from a 2 week tour of Italy. During the middle of our stay we decided to return to Rome the night before our flight instead of the day of. We had started our trip out with 2 nights at the Sofitel, but were not overly pleased with the accommodations and decided to try the Hotel Piranesi as it was listed in our guide book. We called and were able to book a junior suite. We arrived late after a long day of train travel. The reception was very welcoming. The front desk person even informed us of a strike happening the next day and offered to confirm our flight times. We were ushered into our suite and were pleased. Upholstered walls, hardwood floors and a beautiful bathroom, cedar lined closet, 3 balconies. The only complaint was the television was tiny and one of the bulky kinds, but we weren’t planning on being in the room so not a big deal. We took an evening stroll in the Piazza del Popolo and it was beautiful! We returned to the hotel and decided upon a nightcap at the bar. I had a bit of a cold so I asked the barman to prepare a hot toddy and told him the ingredients. It was perfect! He served us cake and a chocolate croissant to snack on. We hadn’t had dinner so this was a welcome treat. We spent some time in the sauna before we retired for the night. Breakfast the next morning was delightful and we took in the view from the roof top terrace before our departure. The concierge had arranged a private car to the airport upon our request. Everything was just wonderful and we certainly will return.

The single rooms are small and well laid out. The wall paper was worn and had a few obvious repairs making the room somewhat shabby. The bathrooms are up to date and very well appointed. My single room had a pretty walk out deck so be sure to request it as my friends room did not have this feature. My first night there I woke at 3:00 a.m. in unbelievable heat. Checking the next morning I found out that they shut off the AC at 12:00 to economize. I requested they not do that for the next three nights and they where kind enough to accommodate me. The breakfast is in the basement. It was very stuffy no A/C but the room is pretty. The front desk also does the concierge work. They were all very nice and helpful but sometimes busy convenient. It was a very convenient location but not a good value, very average.