This is your stereotypical college bar. While I like all of the people who work there he's the real deal about this place:
First, the bouncer might as well be a federal judge. They will be investigating your ID (especially if it's out state) like Trump with a middle eastern visa. I'm 27 and they called the cops on my out of state ID in the middle of winter. So I had to endure the bitter cold blast of Kent until they arrived.
Next, getting to the bar is like pushing your way to the front of a group of teenage girls at a Justin Bieber concert. PRO TIP: if you are a girl, never let your boyfriend go to get the drinks... it's takes men at the water street tavern an average of 45 minutes longer than girls to get a drink (see attached excel file containing data...jk)
Then, when it's time to pee... ugh. You will have to push past giant groups of friends screaming their conversations to one another. Next, when you enter the soaking wet, two-stall bathroom, both stalls will be out of toilet paper and there will be a drunk girl balling her eyes out. Fortunately however, there will be another drunk girl who totally loves your outfit and wants to be BFF. You might be able to convince her to barge into the men's bathroom and ask for some TP.
But--- the people who work there are pretty nice and when it's not crowded (say on a Wednesday at noon) it's not too terrible.