Mercure Bonn Hardtberg, BonnMercure Bonn Hardtberg in Bonn, Germany has a corrected score of 2.7 ± 0.2 (solid evidence, 4 of 4 platforms), ranked 35 of 42 hotels we score in Bonn. Its platform ratings, normalised to 0-5, average 2.6 before correction: Booking.com 2.2, Tripadvisor 3.2, Google 2.3, Agoda 2.7. Rooms from about $76 a night (cached, not a live quote).Mercure Bonn Hardtberg is a four-star hotel situated in the Hardtberg district on the outskirts of Bonn. It features 142 rooms and suites with modern interiors and Wi-Fi. The property includes an international restaurant, a bar, and eight air-conditioned conference rooms. Guests can access a swimming pool and free on-site parking. The setting is quiet, offering views of the Rhine Valley and proximity to the Rhineland Nature Park and Telekom Dome. It suits business travellers and those seeking value, though some guests report a musty scent in the building. The hotel is located away from the central city bustle.What stands out

Free on-site parking

Quiet location near nature park

Large conference facilities

Swimming pool available

Watch out for

Musty smell in some areas

Dated interior feel

Better-scored in Bonn

Motel One Bonn-Hauptbahnhof, Bonn: 3.7 ± 0.2 (solid evidence, 3 of 4 platforms), from $103 a night. Motel One Bonn-Hauptbahnhof is a 3-star design hotel situated at Am Hauptbahnhof 12, directly opposite Bonn Central Station.

Hotel Deutsches Haus, Bonn: 3.7 ± 0.2 (solid evidence, 4 of 4 platforms), from $200 a night. Hotel Deutsches Haus is a privately run three-star hotel located on Kasernenstraße in Bonn’s Old Town.

Burg Heimerzheim, Bonn: 3.7 ± 0.2 (fair evidence, 2 of 4 platforms), from $137 a night. Burg Heimerzheim is a three-star hotel set in a restored water castle in Swisttal, Germany.