It was a great location next to the colosseum. It's in a nice public area. However it's right across the street from a bar, they were noisy until 1AM. It's on the second floor, so not much privacy with the windows next to the bar. The streetlight is right outside the bedroom window, so bring eye masks when you try sleep.
On to the tub! It's a nice large tub, however expect it to take over an hour to fill up with the water pressure provided. The temperature didn't get hot enough to have a relaxing soak after days of walking miles around Rome.
It is a 15-20 minute walk to other sights in Rome to the west. I suggest to learn the Metro lines to save on a walk. I was happy here, but I would much rather have had something closer to the West, since that's where we spent most of our time.