This is reportedly one of the oldest hotel in the Munich's Old Town, dating back to XV/XVI century. It is a good 4* place, with all you can expect from such a place (no minibar in the room might be the only disadvantage, but there is a great bar downstairs).
The best thing about Torbrau is its location - 50 meters from the Isartor, which means majority of tourist attractions are within a walking distance. Additionally, the S-Bahn trains stop just 200 meters from the hotel entrance, thus you can get to/from the airport real fast (approximately 30-35 minutes). The staff at the hotel was very friendly and helpful. Definitely this place is worth staying.