Flowers hotel is a very nice place to stay, with nice and helpfull staff. Its clean, big rooms and you are as central as you can be in Münster city. If there is a downside, you could say that the street behind the hotel attracks a bit too much (most foreign) drug addicts. I belief the street hosts a community office for drug addicts aid and thats why you find them there so often. They never bothered me, but they are not a very attractive picture for any company in that street.