If anyone nearby is reading this, please consider coming by sometime :)
(You need a reservation. Not everything works. In fact most machines don't work probably. It's not super fancy like the Living Computer Museum was. There's a lot of stuff on the floor. It'll probably move to a bigger place soon so that'll get better probably. It's not particularly cheap; there's a yearly fee (no auto-renewals) and a per-visit fee. There's probably almost nothing to do if you aren't fluent in Japanese.)
So far I fixed: ZX81, VIC-20, PET 2001, various MSX machines. (See my blog for details :p)