Fantastic, even in the Covid restriction circumstances. The rooms are very comfortable, The air con works (you have to close the window for it to work due to a censor - great idea). Very easy atmosphere, there is a Netto next door and it is easy access to Phantasialand with the Mitte stop for the shuttle either a 10 minute walk of 4 minute bus ride. Also, customer service is beyond reproach - so heplful and also kind. Breakfast IS included and right now due to the Covid situation it is more limited than usual but still HUGE effort made to keep you safe AND give you a good breakfast!
5 stars all the way!
As an aside - yes it is slightly cheaper to stay in Cologne close to the Central station and then travel in to Phantasialand BUT I promise if you book at this hotel even though it is slightly higher in price, you will find it was the right decision and will in fact save you money!