If you are looking for a deal, then I would suggest first trying for the Marriott on Priceline. It looks like you can get a room there with a bid of maybe $100 to $125 per night (bid for a 4* in Copenhagen (not the airport!) and it should be the only 4*, but no guarantees). You will not find a better deal in Copenhagen. The only downside to the Marriott is a slightly out of the way location, but it really isn’t that much more out of the way than the Mayfair and is a significantly better hotel.If you don’t want to go with the Marriott, then I’d recommend looking at the Admiral if the budget allows, or maybe the Skt Petri.Regarding the Mayfair… It looks okay, but the location is not my favorite. That side of the train station is less desirable and is really best located for Tivoli, which isn’t open in March. The only real plus to that area is the abundance of ethnic restaurants, many of them pretty good. Personally, I would target the area closer to Kongens Nytorv – the Hotel Opera, the Strand Hotel, and Hotel Phoenix are all in good locations and might be comparable in price to the Mayfair(I have NOT stayed in any of the hotels, just commenting on location). The Hotel 27 is popular – on a nice side street near the Strøget.Here are some other threads with feedback:fodors.com/community/europe/looking-for-a-hotel-in-copenhagen.cfmfodors.com/community/europe/hotels-in-copenhagen-412721-2.cfm