If you want luxury, this is not for you. If you want amazing views of attractions from your window, this it not for you.
If however you want a clean, comfortable bedroom with shower and a place to have a meal and use as a base very close to the city centre, THIS IS FOR YOU. The hotel have a modern feeling restaurant and reception area, the rooms and hallways however are looking a bit dated but we'll maintained and we'll kept. Best way I can describe it is a modern looking budget hotel with 80s / 90s decor. U bahn 5 mins walk, tram 5 minute walk, Castle 2 minutes walk. It's a bargain of a hotel.
The only real complain I have is lack of air-conditioning. I can imagine it be really warm mid summer.