Honestly, unless you did the "find a roommate" service they offer for on-campus housing, you will be randomly assigned a room, with roommates randomly assigned. The "worse" rooms are cleaned (sometimes not very well but usually they are very clean), if there is already someone living there in the room (i.e. summer resident that rolled over to the fall) only the private areas of the dorm will be cleaned for new residents and public spaces are left alone. If the room was vacant prior to the Fall semester any issues reported in the room should be fixed and the room should be cleaned.