Stayed here because we went to a Dortmund game. Everything worked fine at the hotel. The breakfast was nice with fresh orange juice. A little hectic so the cook couldn´t make a omelett at that moment but there were plenty of other options and overall the breakfast felt fresh. Before the game they organized some "beer and wurst" in the lobby so nice to start the game there. The only thing I would critisize is the fact that the wifi didn´t work in the room, on the other hand the "business room" with several computers and printers and pre-bookmarked flight check-ins was great.
For our purpose the hotel was perfect and we would stay here again if we come to watch another game.