I just finished watching the movie and I thought the pacing of the movie was pretty rough. By the end of the second act I could not wait for it to end; but the Archimedes Ear section was easily my favorite, even though it was after I felt the movie had overstayed its welcome (especially with how repetitive the chase sequences started to feel).
The de-aging left a lot to be desired and I wish Hollywood would go back to casting younger actors that can pull off the mannerisms instead of populating movies and TV with PS3 characters because they're afraid audiences won't connect to new actors.
Overall, it was an enjoyable enough movie, but I probably wouldn't make a point of seeing it again. Having said all that, it is still in my top 5 Indiana Jones movies.