I wouldn't call it terrible. Not every episode of Breaking Bad was pure gold (or should I say pure crystal blue persuasion). El Camino was like watching a two-parter that leads to a great episode. My hope is that the ratings are good enough that it leads to another movie. The story that I want to see revolves around Skyler, Walt Jr and Marie. Those three actors deserve there own resolutions. I would lift a schraderbrau to that.
I had no idea this is about a sequel. El Camino is a Clint Eastwood movie, that's why I came here....
Are you thinking of Gran Torino?
Either way, OP shouldn't feel bad for the 'spoilers'. Especially if you came here for a film that doesn't exist.
I basically live under a rock when it comes to pop culture and I'd heard of it and what it was about. If you haven't seen Breaking Bad by now then you'll probably never see it all anyway. Walt being dead isn't really what its about anyway. He started the show with cancer, so it was probably safe to assume it would go this way.