I don't subscribe to Netflix so I can't compare. It's been so long since I had cable, but cable gave me access to many channels, not just Disney. Of course it was more expensive. I personally think the movies and series that HBO has to offer are better than what you find on Disney+. You also get access to many live sports events with HBO.
But my assessment on the service is what Disney is charging and offering now compared to where they started. Even understanding the initial price was low by design, I don't think they've done nearly enough to bring $19/month worth of value to the service. The catalog options are great, but those were there since the beginning. I like the "behind the scenes" stuff, but they seem to have abandoned many of them. I honestly haven't been impressed by any of the scripted series. That's a matter of opinion, but I think only a few have really hit from a popularity standpoint. Hulu seems to have done better there. That they price the bundles so close to the regular D+ price definitely reinforces the idea that they're trying to push people to have both.