I have been to this bar several times. I can tell you that I am a very easy to please person as is my girlfriend. A simple hello, some nice talk welcoming us (especially if we're one of 4 people in the entire bar) and we're yours and most likely so is all of the money in our pocket. We are SO VERY EASY to please. So: The bar is small, very very cozy, a nice antique motorcycle in view from the door. For AMBIANCE they get a 10 star rating! Low lit candles, GREAT music, very well done. There are mainly two people that will tend the bar here. The (owner) father and the owners Daughter. The very first night we went here it was the daughter. She was chatty (again 4 people besides us were here), she was very very friendly, pleasant, and suggested wines. We both vowed that this would be our favorite place in Vienna (we live here). She showed us around, told us the history of the bar and then admitted that business was not good because of her father and she wanted out of this family business. A few visits later we finally met Dad the owner. The bar had 2 people and could sit maybe 15-18 people up front, and the same in the dark dungeon like room in the back with no windows etc. We walked in ready to enjoy the evening of wine drinking and each empty table we immediately saw had "RESERVED" signs except one . We found one that just had a credit card sign on it, and sat down. 2 minutes go by, 5 minutes, no greeting, no hello, no nod of approval, nothing. We felt like strangers immediately. Mind you there are only two other people in the bar and he made eye contact with us several times. We smiled. Finally he comes to the table and does greet us and say "welcome" or anything remotely nice but rather points to the tiny plastic placard that simply has a visa symbol on it and says "RESERVED." So we inquire for any free tables with smiles on our faces and he then brings my girlfriend back to the dark room with no windows and sits her at a table and by now I see a table with no reserved signs in the front (but he did not offer this table to us) and I look in the back room and he's shuffling my girlfriend from one table to the next in an EMPTY cave of a room with NOTHING on the tables. He's asking her questions and I can just tell he's not being nice. I can see the look of anger building on my girlfriends face so I motion to her to leave and then it was all downhill after that. They had some words, and we walked out. The man comes out of the bar, and yells at us in German and then English saying we have "no class" amongst other things. We still like this place but will only go there if the daughter is working. The owner is a rude, arrogant man that does not know how to make the simple motion of being friendly to people. We had a lot of money in our pockets and probably would have left 50 Euro in the bar easy as we always did, but for some reason he didn't understand basic concepts of business and making money.