I’d certainly return. It’s a very solid size for a central Tokyo apartment and a 15 minute walk will get you to the mayhem of Shinjuku.
If 4 of you stay you will need to get on VERY well. It was a great size for me solo.
It’s not quite as bouge-glam as the pics suggest. You don’t really get any natural light, slightly scruffy entrance and it’s chilly in winter - the aircon didn’t really touch the sides, but might have been my error.
All in all though a very solid stay. Lovely, responsive hosts, decent internet and you really do feel cosy when tucked into the curtained bed. Quiet streets near a vibrant hot spot. Tiny tiny bit rough around the edges v glam pics but it’s super clean and well setup where it counts. 4.5/5 would go back