I don't doubt that this hotel has excellent business facilities, but if you're going to Rome primarily for a sightseeing/cultural journey, you're better off paying a bit more and staying close to the center of Rome. The hotel is newly remodeled and spacious with a new terrace-bar area and nice restaurant. The service was friendly and everyone spoke English. We were in one of the new, modern rooms with a balcony and a huge flatscreen tv that had internet access built in for €10 extra.
There is a complimentary shuttle every hour into the city center that drops you off near the Ottaviano Metro stop, but it only seats 16 people and is first-come, first-serve. If you don't push your way onto the shuttle (and people do push!) then a taxi ride is about €20-25 to a similar drop-off point. On two occasions we split a cab with another couple who were also unable to get on the shuttle, which worked out well for everyone.
Also, the last shuttle out of the city center is at 21:30, so if you're eating dinner at 20:00 or so, you're probably not getting on it. (And again, the shoving and lining up early to get on.) What you may save on your room rate, you may end up making up in taxi fares. There is a commuter train that stops near the hotel, but one night we waited an hour for it to no avail and finally took a taxi. The hotel's website says it's '15 minutes from the center', which is a bit misleading. Map it out. If you've got a car in Rome, I'd recommend this hotel. It's much more affordable than the ideally located Marriott Flora, but now we know why!

This hotel is a good business hotel located off the highway, high up on a hill so that it's quiet, but in an area that is of no interest to tourists. The concierge lounge was big but was lacking in service (trash, beverage and food replenishment) Complimentary Internet in the lounge is available for short time periods if you ask. The hotel room and bathroom were standard American fare- well maintained Check-in was excellent, check-out was extremely slow. Restaurant breakfast buffet was weak. This is a big property and large tour buses arrived and departed frequently.

I like this hotel well enough that I would stay here again I just wouldn't go out of my way to stay here again.

I rated this as "Very Good" for US Standards, for Rome Standards it may rank a little higher- ttz

This is a beautiful hotel. The room accommodations are excellent. Our room was large, had a huge red marble bathroom with separate tub and shower, and a huge balcony with patio furniture and lounge chairs. However, everything else about this hotel was horrible. The check in took forever, the staff could care less; so expect customer no-service. The restaurant was pitiful. Not only did it take forever (and it was not even crowded), but we could not even eat it and went with out dinner that night since their were no other places in the vicinity to eat. This hotel is extremely isolated. When you get there, you are stuck without having a car. You have to book a seat on the shuttle in advance or you will be wait listed. So if you go, and I do not recommend it, be sure you book the shuttle when you check in. It is truly a shame that the management at this hotel could care less about its patrons. It is such a beautiful place, but everything else about it ... location, staff, food, and service are horrible!

This meets traditional Marriott standards for room size, service, ambience, friendliness. 5 Stars for that.

The hotel is about 10 miles from downtown and you need to reserve and take their shuttle. It drops you off near the Tiber on the Vatican side. Not expensive but if you go during rush hour, the trip may take 45-60 minutes. Same coming home.

An alternate is a cab which cost about 40-50 euro and really doesn't get you there all that much faster. It is not really near the train or the metro nor night clubs or restaurants. Essentially, I think it is a business hotel

A good Marriott hotel that meets their standards but a little out of the way for touring.