Anyone been there? My partner is Japanese so we'll spend a week or two in Fukuoka to help out our Mum, but got a week spare; I wanted a day or three in Tokyo to go to Super Potato and such and we've got a couple of days to visit Kyoto before it gets too filled with tourists. Any other recommendations?
YES!!!
I suggest you...
Take a short direct flight up to Tokyo, get a 7 Day JR pass and use that to work your way down. I actually did the opposite way once, Fukuoka to Tokyo within 1 week. I did Hiroshima, Miyajima, Kobe, Osaka, Nara, Kyoto, Hakone then Tokyo.
The flight will cost you about £75 (I flew the other way), book now whilst the exchange rate is still decent. Otherwise the Shinkansen down from Tokyo to Fukuoka would cost a ton if bought separately.
Then on the way down, Tokyo, Kyoto, stop over in Himeji Castle for a few hours and Hiroshima (with Miyajima). It might be very tight though. There is also Nara and Osaka too.
p.s. Super Potato has a few stores actually, the one in Akihabara is the famous one, there are others, and it is also more expensive than say Hard Off. It's a 2nd hand store for hardware and electronics. Go there for cheaper used stuff. Not as cool, but just as good.
In Osaka there is an area call Den Den Town, which is their version of Akihabara.
pps I am going back too next March for 10 days, i can't wait!
Also, change some money ASAP, £1 is 155 yen right now, it was 165yen...but going the wrong direction. A few years ago it was £1 to 135yen....so you are still up...change it ASAP, either physically or using Revolut. You can even put some money into the Suica Card now and use it when you are there.