Is it too difficult to set up shop in the apartments in Graves town? I currently have a small base outside of the town and looted the apartments and thought it would work well as a base but I don't want to take that risk without some knowledge.
Gravestown makes an alright base, there's a Shotgun Messiah Store, the apartments you mentioned, many cars to loot, and lots of small buildings for miscellaneous loot.
If you don't mind the abundance of zombie dogs and infected police officers, then Gravestown is fine for a base. Also, spooky noises if you have ambient sounds turned on.
Personally, I'd look for a two-story building or house that's close to several biomes. That way its easy to find wood, rocks, and places to loot. I enjoy building defenses and walls, and a prefab building like the apartments might hinder my ability to build.