Very convenient hotel for walking over to the airport and easy access into the city by S-bahn; the staff were all friendly and all areas were clean and well-maintained apart from the coffee station in the foyer which was out of action.
The "Premier Inn"-style diy check-in is not acceptable for a mid-market hotel, especially as it only works if you have your Radisson reference number which of course you never receive if you book via Hotels.com so you need to get help to check-in.
My room was a good size, well-soundproofed from exterior and hotel noise, clean and well-equipped except to note that instant coffee and dried "creamer" are not appropriate for the room rate. Coffee bags and normal creamer would be a less miserly, yet drinkable, alternative. The air conditioning was feeble and my room remained very hot for both nights that I stayed.
Having said all that, I would stay there again if I needed to be at the airport for an early flight.