I used to live in Fells Point (a couple of times), had a friend who bartended at Maxs.
They have pretty much every beer you can get in Maryland and then some. About 50 taps and a ton of bottles. But I go to about 3 different craft beer stores and can get any beer offered in MD anyway without the Max environment.
Its def a browski environment though. Even on a nice quiet Saturday afternoon its pretty packed and they will be blarring Pearl jam or something like that. If there is a pub crawl, forgetaboutit.
I spent most of my time at Blarney Stone across the street. Quality beer selection, awesome barkeeps, great juke box selection. Its like the hipster, bearded people, graffiti spot i guess. Id pop over to Maxs to try 1 or 2 beers I knew they had then get the hell out of there.
Back to Maxs - what they do do that puts them on the map (besides the selection) is hosting various beer festivals where they will get beer you cant really find in Md. They also do beer releases for breweries.
This week is their American Craft Beer Week and you can get Maine Lunch and Praire BOMB (2 beers i really like). Interesting that they were able to get Praire. I have never seen that in MD and have to order it online from a shop in Iowa City.
Next week it looks like its Scandanavian Week.
Def go to Max to try a wide selection of beers if you havent been before or if they have a particular beer you like that you cant find anywhere else. But I cant take more than 30 mins at a time there.
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edit - please go and make up your own mind and impression. I dont want to pre-condition anyones experience. Just not my particular favorite for an extended drinking session.
Also, anyone try Goose Islands Bourbon County Brand Stout yet? It was alright. IM going to cellar a few bottles and see if it cant become a little more mealy and evolve the taste. KBS or BOMB is a tier above imo.