Short version: excellently silly.
Slightly longer version: It Did Not Suck. The movie was legit funny, and managed to walk the line of having Thor being the subject of comedy without turning him into a buffoon. The color palette and musical accompaniment was everything that you’d expect from a Silver Age Marvel-inspired movie, and it generally worked. It also cleared the decks for future films, and I will not say anything further because spoilers. A day may come when a MCU movie blows out both engines, and starts tumbling back down the gravity well to a fiery immolation and the destruction of the franchise — but it is not this day.
Moe Lane
PS: Everybody in the movie had a blast playing their parts. You could tell.
I agree it Did Not Suck. But it was nowhere near awesome. Our new foster daughter, who begged us to go see it and is a full-on superhero geek, fell asleep midway through. My wife also expressed a difficulty staying awake through the movie. And I think there was a definite lag in the middle third, either side of the Big Friend Fight mandated by every MCU movie.