A very good Hotel, excellently...

Liked: The Hotel is in a great location just minutes walk from the central railway station. The staff were both very friendly and extremely accomodating (allowing me to leave my luggage at reception for later collection, after I had checked out, so that I wouldn't be forced to drag it to the exhibition centre). Breakfast was great with a varied selection of cold meats, cheeses, youghurts, fruits & cereals. The room was spotlessly clean and the bed comfortable. Considering the location the price was also very reasonable.
Disliked: The only problem I encountered was that the internet was extremely slow but I think that might be a feature of german data infrastructure rather than the fault of the Hotel. I live in a country with lightning fast internet so that also might have coloured my perception.

Exceptional

Liked: Beautiful and cozy accomodation. Great position. Easy check-in and good breakfast. Very reccomended
Disliked: /

Very good

Comfortabel homely and friendly accomodation...

Liked: Very comfortable cozy clean accomodation with very friendly staff at all hours. It’s just 10 minute walk from central station and the Ludwig museum Good breakfast . I had a spacious room with nice facilities and good bed

Cosy very comfortable stay

Liked: Extended breakfast - very kind staff who manage really well in English

Very pleasant, helpful staff and...

Liked: The hotel was well located near a very good restaurant and coffee shop and 6 minute walk to the station. The service was excellent. The staff prepared breakfast a little earlier than the scheduled times as I had to leave early
Disliked: The single room was tiny but otherwise comfortable

We recommend Buchholz Hotel

Liked: Breakfast was delicious. Great location.

Superb

Liked: We were there for 5 nights and our room had a sitting room attached which made it very comfortable. Good location less than 10 mins walk from Koln Centraal station and the Cathedral. Plentiful breakfast in a pleasant breakfast room.
Disliked: No air conditioning. However, windows can be opened for fresh air. Would be warm in summer. Room was clean and Housekeeping came daily but were inconsistent in quality

This is a fabulous hotel...

Liked: the hotel is in a quiet part of the city, but not a long distance from the train. Breakfast was included and more than enough to fill you up, in a nice cozy room.
Disliked: You must carry your luggage up a few stairs to the hotel.