Do not book this hotel if you are expecting to have A/C in your room. This hotel is listed on Hotels.com as having A/C; however, we went in August and the room would not cool down. (Even a staff member came to our room and noticed how hot it was.) After talking with hotel staff about the issue and that we were promised a working A/C, we were basically told that the A/C units for the hotel rooms do not work when the air outside is colder than it is inside. So, our room that was hot and stuffy could not be cooled down except for cracking open a window (which brought in street noice, ruined any room privacy and added undesired light from having to have the drapes open to let the air in). In fact, we were told by hotel staff not to use the “AC” unit in the room or it would actually heat up the room. The hotel would have otherwise been fine (breakfast was good and area was ok) except for the fact that it had no A/C and was too hot to sleep until it finally cooled down (with the window open and A/C unit off) at about 1 AM. So, if you are staying in Vienna during the summer, I definitely suggest you book elsewhere.