this place brews it's own beer, and it's awesome: good taste in every kind of beer, just 5€ for the medium size. Then came success, and with success came people. How did they manage a lot of people coming to the place... first it was, you can book just if you come to eat as well. Problem is, food in the place is very good but with very small portions and quite expensive, so if you want to have proper dinner, with 2 beers you're gonna spend more than 30€. And frankly, compared with quality/price ratio you have in Milan's restaurants, it's too much. So you can come without booking, but it means just coming in small groups and avoid rush hour, otherwise you risk to drink at the bar... which is quite short, just enough for 3-4 people, or standing somewhere inside the place, with people and waiters constantly asking permission to pass, because there's no room, or worse standing up outside, in front of the road. And so, time slots arrived: you can book, but you have to choose a time slot like 6pm-8pm, 8pm-10pm, etc. So if you are in a big group and you need 7pm, your problem: you have to leave the table 8pm anyway. Making it again impossible to book.
So after the the big success, still good beer for good price, but the place is just good to go in small groups in non-rush hours, or maybe to go buy their good take-away bottle beer to keep in yours home fridge. Overall, disappointing.