Great hotel with friendly staff and delicious breakfast. Excellent location on a residential street just off a main drag. Easily walkable from train stn with suitcases, even with construction in the way. Also easily walkable to most places you want to be in Karlsruhe, and certainly very fast if you have a bike or want to use the trams. It took us about 20-25 minutes to walk to the Schloss area. Large room, big comfy bed, good wifi. It was REALLY hot in Karlsruhe, and like most hotels in Germany there was no A/C. This meant leaving the windows open all the time, with the exterior metal shades down to keep room cool. Our only complaint was that the popular Greek restaurant next door was loud at night, with voices and food delivery trucks coming through our open windows (not possible to close given heat). The shower was not the best, with a curtain around and easy to get water on bathroom floor, but it was no big deal. It looked like some rooms had balconies, so maybe try to get one of those, and up above the ground so it is quieter :) We'd stay again, the friendly/helpful staff made a big difference.