I thought it was pretty terrible.
The fridge scene was ridiculous and in a bad way. In something like Temple of Doom you had them jumping out of the plane in the raft and landing which was ridiculous but it was in a fun way. It's one of those things that is pretty absurd but you could almost believe it happening. The fridge though, ugh, no. That was just horrible.
Then there was the greaser kid playing Tarzan which was even worse than the fridge. What's sad is that would have been a really cool and fun sequence but that completely ruined it.
What else, oh, the whole lets turn Indy into Spider-Man was stupid and the random people guarding that temple.
And of course, the aliens. Really, I don't think they could have picked a dumber ending to such an embarrassment of a movie.
I'm sure there were other parts that were just as horrible, but it's been too long for a movie I don't care enough about.
As far as I'm concerned it goes Raiders of the Lost Ark, Last Crusade, Temple of Doom and there just isn't a fourth movie.