Maybe I don't appreciate modern art or I'm not cultured enough, but this was one of my least…read morefavorite museums I've been to. I've been to the Tate Modern, San Francisco MoMa, and Bilbao Guggenheim, and I found the art in this place just too bizarre for my taste.
There were 3 floors of exhibits and it was enough for me - the first floor was a temporary exhibit and was so strange. There was a giant " 1-bedroom " apartment exhibit that looked like someone was moving in or out of their apartment and didn't unpack with water bottles and other trash on top of water bottles. There were blankets in dry cleaning bags, and other ordinary pieces you'd find just hung or laying on the floor.
The other exhibits were slightly less weird, but there were just a lot of canvases or fabrics painted or dyed in all one color. The Yves Klein stuff all in blue was interesting and very colorful. But other things like a rope died different colors, a pile of rocks, and other things that I could have made myself was not impressive. Maybe if there was an audio guide that explained things better, it would be have been more interesting but I spent an hour in there and had enough. I've never heard more snickering in a museum in my life.
The entrance fee is 10€ but free for students, but I would have just preferred to get a coffee something instead. No offense to those who like really modern art, but this was just not for me. Plan to spend 1-1.5 hours here, it's not super big. It was raining and cold in Nice when we went, so we didn't feel like we wasted a good day outside, but this would not be my first choice of things to do in Nice.