So disappointed. We went last week before lunch time on a week day; it was packed. We were on RS tour & had no choice in timing the visit. Our guide said Summer is busier. I just can't imagine. This place was an area of art inspiration; all I was inspired to do was leave. Our group did not move together as someone asked. So many bodies shoulder to shoulder; not a quiet space to take a breath. I was not seeking solitude, just some space around me to move easily. The house was jammed, every usable square foot. Honestly, I would skip it and find a documentary or read about Monet instead. Or find another garden less famous and probably just as pretty. The RS Tour Paris & Heart of Normandy should refrain going here and stop recommending it, so visitors are not disappointed. As a customer of the tour, the fact program managers think this is a pleasant place to visit has me displeased, as they must be aware of the crowds.
Update: for those commenting how wonderful their experience was decades ago, or anytime Pre-COVID, that’s great for you, but can be misleading to people trying to evaluate now whether or when to go.