The building is inhabited by gunners. You can eliminate the majority of them stealthily. The location is quest-related, because here you find robot Drinkin' Buddy. You can start the quest in Goodneighbor in Rexford Hotel, or by finding the robot. Also, you can keep him for yourself, thanks to which he will be brewing beer for you, within short spans of time, and depending on the recipes that you provide him with.
At the ground floor, on the side of the collapsed fragment of the upper floor, by the counter, there is an advanced safe and one of Beer recipes for Drinkin' Buddy,
At the end of the corridor, at the ground floor, the manequin is holding, in its hand, an issue of Total Hack,
In this location, there is quite a few alcohol and meds/drugs,
In the small storage, behind the locked door, next to the stairs to the basement, there are two bottles of Nuka Cola Quantum.
On the pier to the South of the location, you find Donny Kowalski, who gives you quest Here There Be Monsters