Don’t take a room with windows to the big street. I have stayed in several hotels at the almost exact same spot, but nowhere has there been this bad sound isolation. Could not sleep more than a few hours. Luckily I was able to get another room to the back of the building for the rest of my stay, otherwise the trade show week would have been much more tough. Price during trade show is at least the double for what the hotel is worth in terms of comfort/class (200€ per night!). Breakfast was very basic. Friendly staff, clean rooms, functioning wifi connection.