Heroes Reborn is the closest Marvel came to a Crisis level reboot, and it worked out for the most part. Spider-Man had to wait until Brand New Day era to wipe out some of the "mistakes" of the last decade. (Some needed, some not, same end result: Brand New Day Spider-Man books are better than pre-Brand New Day, imo) And that's all to say about that part. The rest though, well, besides Teen Tony and the entirety of The Crossing being undone, we got a Thor book without the 90s costume, Thunderstrike, Red Norvell, and several other Thors. As much as I liked elements of the Thor/Enchantress living together in a NYC apartment, and the Blood & Thunder storyline, I think there was a lot of stuff needing scrubbing.
And Heroes Reborn happened while Marvel was bankrupt, right? It's brilliant. "We're going to restructure, retool our major titles to avoid what made us bankrupt in the first place. Let's just license out the books to Liefeld & Lee for a year to bring in some money. We'll ignore everything that happens there."
It's also both brilliant and weird that most major heroes today are actually recreations of Franklin Richards. They're essentially all clones, brought back to basics because that's how their creator remembers them. At least, I think that's how it goes from reading Avengers and Thunderbolts.
I also like how Loki is aware he is not actually Loki, and goes about trying to become a real person.