Most of the good reviews below accurately describe the place, it really is in a great location, has fantastic views. I like the place except:
1) the elevator is only for the luggages, not sure if it is acuurately described in the listing.
2) On Friday and Saturday nights especially, it really is noisy we woke up in the middle of the night hearing people singing, the bar crowds are all outside so there's lots of backgground noise. If you are the type that's out partying as well no problem, but if you want to wake up early to skip the lines at Vatican then it's a problem.
3) The ceilings are fairly low with varying heights and there are steps in the apt. I'm 6 1 (185cm) and hit my head while walking in the apt several times. This makes the space uncomfortable.