I did see this, this past weekend.
I must say, the action sequences were great -- especially the long jeep scene. Awesome stuff.
The story, not so great -- b/c it feels that there's too much unnecessary stuff there.
Basically, that sounds like a lot of Lucas's movies (first two Star Wars prequels, Phantom Menace and Clone Wars) in recent years, now doesn't it?
Personally, I think the aspect of Indy's son and his ex-girlfriend coming into the picture were way more interesting than say the Area 51 stuff; alien stuff and sci-fi elements; and the cliche Russian type of "wanting more power" enemies.
Regardless, still damn entertaining to watch.
Also, Indy has too many of the good one-liners in the flick.