I finally watched Season 2 Episode 1. Amusing. Something in me still prevents me from regarding these as more than just interesting speculative stories. I know, that's the whole premise: "What If...?" So if they're reasonably interesting and/or fun, okay, I guess that's all I'm looking for. But the whole thing with these stories actually being canon because multiverse blah blah blah, no thanks. I'm not fanboy enough to go all the way with that. I'll just stick with stories that take place in Universe 616 or whatever the "real" one is.
Nebula was badass, as always, which was cool. Korg, Yon-Rogg, even Yondu with original voice actors was cool, plus Howard. But I always liked Nova Prime (largely because I have a thing for Glenn Close) so I didn't really like what they did to her character, but at least it was a different voice actor so it wasn't "really" her, even though it wasn't really her in the first place.