I never stayed at this property because they forced me to stay at 2 other unsatisfactory properties.
Pros: The WiFi was good in both locations, neither of which was the place that I reserved - see below for what happened. The second location (Residenza Monti) was spacious with air conditioning, so that good. But, as you will see, it is not where I reserved. (continued from below) I came home in evening and the shower head was not repaired! I called Hotel Valle and they said that they had no record of my request to fix the shower head. Outrageous. I attach a photo of the problem for proof. Hotel Valle offered to send someone to fix the shower head the next day, but I was leaving that morning, so too late and again I had to clean myself using a trickle of water and the bidet when I really wanted a shower. Finally, to check out Residenza Monti, you are supposed to leave the key, but you need the key to open the external gate, so I had to prop open the external gate (not good security) and then go back upstairs to leave the key in the room. I am completely dissatisfied with the experience, and I never even stayed at Colosseo Studio Suite. I wonder if there was a "bait and switch scheme" going on here.
Cons: I arrived at Colosseo Studio Suite and no one was there. I rang bells by the door, but no answer. I had no communication contact on my booking.com reservation, so I called the number that I found online. Whoever answered seemed annoyed that I called and referred me to call Hotel Valle (Via Cavour, 134). I called the Valle and they told me that I had to go to Valle first to check in to Colosseo. I was very annoyed at this, as I had already walked 2 km because the metro at Termini was closed and it was already late in the evening. I asked how was I supposed to know to go to Hotel Valle to check in to Colosseo and the person I spoke to said that it was communicated to me. FALSE. There was no such communication via booking.com. So, I walked to Hotel Valle and I explained the situation, and the front desk told me that I could not stay at Colosseo but rather I had to stay Valle. As it was very late and I was exhausted, I did not argue much but the front desk seemed annoyed at my complaint but it is outrageous that I could not stay where I booked. There was only one elevator and the wait was always 5 minutes. My room smelled as musty as a cheese cellar somehow mixed with disinfectant and it had no desk and the bed was hard. But, I was tired and went to bed. The next morning I asked the front desk to leave to go to my reservation at Colosseo Studio Suite but the front desk told me that it was unavailable - unacceptable! Instead, they offered to switch me to another property, Residenza Monti (Via dei Serpenti 15). So, I accepted the offer. So, yet more time wasted walking to yet another location. But, okay, the Monti seemed better than Valle: it smelled normal, had a kitchen with table, comfortable bed and air conditioning (no air conditioning at Hotel Valle). I had to call to get the WiFi password. But, the shower head was broken! I called to complain, they said that they would send someone to fix it. But, I needed a shower, so I somehow I cleaned myself. (see above)