Not as bad as it's made out to be.
I understand that people hate the fridge scene. I find it ridiculous too. And the mere presence of good ol' Shiah causes major annoyance.
But as the Angry Videogame Nerd has pointed out, the Indiana Jones movies have done many ridiculous things before without casuing a fan uproar.
I think this film fell victim to unrealistic expectations. People expected another Raiders of the Lost Ark. If this was the 80s that would have been reasonable. All I went to see was a fun tribute, which is exactly what I got.
The movie is fun and has pretty good action scenes, though not the best. The plot does something a little different, veering from the strictly supernatural, while still hitting the expected notes.
Just like you would not expect Independence Day to be anything more than an awesome popcorn flick, expecting this to reach the full height of the Indiana Jones franchise would have been impossible.
That said, I still feel that this is the easiest one to rewatch after the original. Speaking of which, I should rewatch that again. Henry Jones jr. still shoots first!