Loved our stay in the big Tokyo egg! We canceled a hotel reservation to come here instead and we have no regrets at all.
Taeko was a responsive and helpful host, and the unit itself was even better than expected... I was a bit worried that it would be too minimalist (sterile, even), but it was surprisingly cozy. There's not much furniture but it's all very comfortable!
It also had more mod cons than expected: washer, drying rack, coffee machine, kettle - and all the basics worked well (good wifi, powerful shower). The pocket wifi was *enormously* useful while getting around town and the international AC adapter came in handy too.
I definitely recommend this place, one of our most fun airbnb's ever.