Joe has a well-kept and self-sufficient little oasis that feels like you're in the middle of the jungle, cuz you kinda are.
Definitely try to arrive with daylight, it can be easy to miss but it's a quiet road so nobody will notice you backing up embarrassingly because you missed your turn. Zoom out to the whole island on your google maps app, and make it available offline, that will make finding his place easier and your vacation much less stressful. Also, listen to the directions Joe gives you because your gps might send you into a 15ft wall of lava, but don't worry it's kinda cool.
Pahoa, the nearby town, is a chill little place, definitely try Kaleo's for a nice dinner out and support the town. Check out the mermaid pools, they're a short walk from Joe's, just down the dirt road, and right down the paved road. Look for the green gate on towards the ocean. You've gone too far when you walk up a slightly inconvenient hill and see a green sign on a tree. And say hi to Brando, he's a super friendly dog.