We spent 4 nights in Rome. We liked the hotel, however, we're not sure we'd stay there again. Our main concern was the location of the hotel. Yes, they do offer a free shuttle service. But with some bad luck, the shuttle will leave without you and will keep you waiting for it for as long as you like. On the first night we booked it (the last shuttle which is 10pm), it simply left without us. We waited for almost 30 minutes before we called the hotel and asked what happened. We found out that the driver took someone else in our place, a couple who probably was late for the previous shuttle. And no, we weren't late, they simply left earier because the bus was full. They sent the guy back but it meant another 15 minutes of waiting in the parking lot. On the second night it almost happened again, as there was 1 person too much waiting for the shuttle. So had we come on time, they would have left without us but since we were there 10 minutes earlier we "got lucky"...
We also regreted that the last shuttle to the hotel left at 10pm, which meant that we always had to control the time during the dinner. Sure, you can take the metro and then walk from Flaminio station but seriously, after 10-12h walking we did every day, we didn't feel like it. The taxi from the center to the hotel costs app. 15-20 Euros. So the shuttle was the best option, but we didn't like being so dependent from it.
Other than that, the hotel was pleasant. We loved the breakfast, the delicious coffee, the fluffy, thick towels in the bathroom, the bed so huge you could get lost in it. The room was spotless and was cleaned every day. The marble bathroom was nice and large, I'm not a fan of the tub/shower combo though and disliked showering in the pretty narrow bathtub while touching that hanging cloth (well, at least it wasn't plastic) all the time. We booked a Superior Room and I really hoped for a normal shower. The water pressure was really good though.
The TV didn't offer too many chanels, and for those whose Italian is not fluent only 2 or 3 news channels in English and French.
I also had to get used to sleeping under the bedspread which in my eyes might be okay at home, but I really dislike it in hotels.
Last but not least: our impression on the last day was that the only free things in this hotel are the breakfast (unless you want it in your room), the shuttle and the candy on the pillows. Everything else, from the WiFi (6 Euros per hour) through the mini bar to the shuttle to Fiumicino (65 Euros) is pricey. Getting an iron is not possible, you need to use the washing/pressing service of the hotel.
We probably won't stay there again. The hotel is pleasant but we're sure that Rome offers many equally pleasant hotels that are much more central.