Marvel’s Luke Cage has superhuman strength and bulletproof, unbreakable skin, and that’s way too overpowered to be a “street-level” hero. What makes characters like Spider-Man and Daredevil “fun” is the fact that they are vigilantes who can be hurt; they can be shot or stabbed, and their friends worry about them because they aren’t indestructible. But when you have a character that’s indestructible, then all that danger goes away. Also normal thugs aren’t a threat to you.
I don’t think his strength is within an order of magnitude of theirs. I don’t think his durability is either.
Granted, I wouldn’t be surprised if you showed me a comic showing otherwise. There’s probably a comic where he goes inside a star or something stupid, because there are always those kinds of writers. But based on his typical portrayal, I think he’s more of a brush off a car crash and pick it up guy than a survive a nuke and crush coal into diamonds guy.