If you are looking for a place to "crash" or sleep for just a couple of nights, then Flower Garden Hotel will suffice. However, my cousin and I did not have a very good experience at the hotel. Although this is the fault of the booking agency, when we called to confirm our hotel shuttle from FCO airport to the hotel night person at the desk said that no shuttle was arranged and that we had to take a train. Being two female travelers, we were uncomfortable with taking the train in the evening in an unfamiliar place. Also, the location of the hotel is a bit sketchy, we didn't feel too safe in the area. There wasn't any particular thing that stood out, but I would have felt safer with a male traveler in the area. When we finally got to the hotel, the same person I talked to the night before spoke English just fine, but in person he would only speak Italian to us, when he clearly knew that we did not speak the language. This was unsettling because I knew he spoke English, and he was choosing to only speak Italian (granted that it is his native tongue, but it was still unprofessional since he is doing business in a tourist location). After he gave us the key to our room, he motioned that there is no smoking in the room, which was fine because we don't smoke. However, upon our arrival to the room, it reeked of smoke making it difficult to breathe. Also, I did not sleep a wink that night because the room faced the street (make sure to get a room not facing the street if you are a light sleeper) and it was extremely hot (I suggest paying the extra 5 euro to have the ac turned on). Also, when I called from the room to ask where the electrical outlet was to charge my phone, he couldn't help and mumbled something about the map of Rome and hung up abruptly. Also the safe in our room was already locked and could not be opened.
The rooms/bathroom, were clean and tidy, it was average. We didn't have time for breakfast, but the morning staff was much friendlier and spoke English. Although these events may have just happened to us, I just want to inform potential customers of our unpleasant experience. If I had to do it over again, I would pay more money at a higher quality hotel, but rather feel safe. If you decide to stay here I hope you have a much better experience than we did! Hope this helps!