The Achat Plaza Karlsruhe is located centrally and is in easy access of many places including KIT and the Palace. The supermarket across the street along with the pharmacy makes it an ideal location. Likewise, the tram station is right outside. The lobby is spacious and the lobby bar is comfortable. One noteworthy comment is that the staff that works at the reception is simply outstanding -- they are efficient, polite and do everything they can withing their power to make the customer feel comfortable. The room I stayed in was clean and adequately spacious. The two shortcomings were that the staff that cleaned the room on a daily basis was a variable. Some days the room was cleaned well and the other days, it was very superficial. The other was that the air-conditioner in the room was not controllable, was minimal, and for two or three extremely hot days in Karlsruhe, the air-conditioner failed, making it impossible to stay in the room. Nevertheless, when I went to the front desk and asked if they could help, the gentlemen there went and found a pedestral fan (ventilator) for me, and that was very helpful. The Wi-Fi in the room was OK but not great;the lobby had better signal. They also have a restaurant but I did not eat breakfast there - it was a bit too expensive for my liking. Also there is a lot of construction going on adjacent to the property but the room itself is quiet unless you open the window, but nights are quiet. All in all, I would stay there again.