Stephanie P.
Yelp
In summer 2017, there was a big Kusama exhibit at the Seattle Art Museum that the whole city went nuts over -- huge lines, tickets selling out daily, etc. So when I learned that there was going to be a brand-new Kusama museum opening right when I was going to Tokyo, you better believe I jumped on it!
First things first: you MUST plan ahead. Tickets go on sale the first day of the month for the following month (i.e., Sept. 1 for the month of October), and right now they're only letting 200 people per day in. If you have your heart set on going, calculate the time difference, park yourself at a computer, and get ready to pounce on those tickets! You are not going to be able to get tix at the door.
Now to the museum itself. It's in Shinjuku, and there are transit options, but it's not necessarily close to a lot of other stuff. Tickets are timed, and you'll want to get there close to the time on your ticket, as it's only good for a 90-minute slot. You start at the ground floor, take the stairs up to each floor, and then use the escalator to come back down.
There are five floors, but each is more like a room. The ground floor is the lobby and a small gift shop. The second floor has black-and-white paintings, the third floor has color paintings, and the fourth floor has one infinity room. If you saw the U.S. exhibition, you'll be pleasantly surprised: you get two whole minutes in there and you can take pictures! Otherwise, photography is not allowed inside. The fifth floor is the roof and has a large mosaic tile pumpkin, but it was closed on our visit because of the rain. Oh, and do visit the bathroom, which is covered in polka-dotted mirrors and makes for excellent selfies!
Because it's small and each group is only 50 people, it doesn't feel crowded or rushed, and you can go into the infinity room multiple times. Even so, we were done after 30 minutes or so, and even with looking in the gift shop, we were only there about 45 minutes. Is that worth $10 to you? You'll have to decide.
Overall, I don't regret going because it was such a unique opportunity, but I doubt I would go again. They do plan to change up the exhibits, so maybe if there were more infinity rooms or sculptures, I'd be more interested. But if you're a die-hard Kusama fan or want the bragging rights and selfies, go for it!