As we went to the gallery there seemed to be a lot of people at the door. As we got closer, it became clear that there was a queue to get in. I don't think I have ever queued to get into a gallery. The guy controlling the door mentioned something like "zwei Stunde," but it only took 1 hour to get in.
The exhibition was an impressive collection of papers from all periods of Monet's life. He was an impressionist, so the paintings didn't get too weird.