I really enjoyed it, despite some stupid CG animal inserts, and just too much CGI in general. If there's two franchises that should do everything practical, it's Bond and Indy.
There were plenty of dumb moments, but overall I liked it. The motorcycle chase was excellent. The fridge was a funny scene, though highly implausible. (But so are aliens...)
I'd love to have seen Frank Darabont's script instead. David Koepp didn't quite nail it.
Harrison Ford DID nail it, though. Man, I hope I'm half as agile at that age....