Casa Opera was perfect for us. It was only 5 blocks from Termini station and MUCH less crowded than other areas of Rome are during summer. We were met on time, the apartment was immaculate and tastefully decorated and right next to a little cafe with excellent coffee and croissants to start the day. The air conditioning worked very well. Note that the bed is in the 2nd floor loft and although the air was fine up there, we opted to sleep on the sofabed on the main floor because we prefer a very cold room. The best thing about the apartment was the mobile wifi unit-we were able to take it all over Rome so that we could stay connected wherever we were without using the very limited data plan most mobile carriers offer (at very high prices). If you are coming to Rome and just need a nice/comfortable place to sleep, Casa Opera should be all that you need (and at an excellent price).