Non-spoiler review:
This is good fun. I don't think its as strong as the first two movies but its not bad by any means. However, it is a pretty meta movie so if you don't know about some the old pre-MCU movies, you might not get the full enjoyment out of it. I'm not trying to spoil it here but when you see it, you'll get it. Felt like they also went out of their way to make it a point Disney was ok with the R rated stuff because they definitely drop tons of F bombs and tons of gratuitous violence. Maybe a little too much because they could have subbed some of it out for a story with a bit more depth. It's still enjoyable though. I'd say its a solid B, 86 out 100 type of deal.