Penthouse apartments don't have another apartment above them, with the inevitable noise that accompanies it, but this 13th floor one did on 14th floor (so it's not really a penthouse). Check-in with Matilde was fine and she was very helpful. This apartment is all about the terrace, which is an impressive size with a great view of the opera house, it faces north and east, so gets the morning sun, but not afternoon/evening. There's a decent size table on the terrace, the seating is 2 wooden benches and 2 nylon folding chairs, none very comfortable. If you're unlucky with the weather, as we were for the 9 days we were there, be aware that the indoor living space (kitchen & living room combined) is very small (I mean really small!). One of the 2 sofas is very uncomfortable, the springing/support seems to have gone and it's really a chaise longue. It would be useful to have a dishwasher and a drier, but that's a suggestion as they are not listed. The bedroom and bathroom are both good sizes and there's an instant hot water system which works well. The mattress on the bed is very hard. The A/C unit providing cooling and heat is extremely noisy in the bedroom, an electric radiator was provided to overcome the problem for us, but had the weather been hot and not cold, that could have been a real problem. The internet and wifi were fine and fast, but the TV is pretty old and virtually none of the "smart" apps worked, Netflix there but just comes up with an error message, so you can't even login to your own account, there's no streaming device, meaning that evenings spent in were odd history programs in German, Spanish TV (most with adverts) or a music channel - if you're going to be out every evening (probably with warmer weather) that obviously won't be problem. There were no spare bath towels, which for over a week's stay would have been appreciated. We didn't need to use the garage. I'm surprised at the very high 4.9 rating from other guests, it's OK, but certainly not as good as anticipated.