If changes from comic to screen are going to be the biggest factor then there's almost always going to be a lot of disappointment, yeah I can see that but millions of people watch the shows that never read the comics so that isn't something many would ever even consider. J Jones is very very highly rated and whenever I ask people what their favorites are it's been near the top.
I loved Daredevil (tv shows / feel I have to say that because of the Affleck movie). Fantastic Four was terrible other than Chris Evans, I think he's the only one involved that you couldn't put a single bit of the blame on, but that's me. Iron Fist was a total failure, I don't know how they failed that hard with it, maybe just no consulting during planning but with DC's tween soap opera Flash, they were I guess allowed a stinker. I don't really know how they managed to screw so much up in Iron Fist. Everyone I've talked to about it didn't finish the season and thinks it stinks on ice.
I haven't finished Defenders yet either, don't know why but the first eps just not doing it for me, maybe I was in an incompatible mood.