The popular cafe Daen's Cafe next door was completely full, so I ended up here instead. During the afternoon on a weekday it was pretty much empty. The staff was friendly, and said it was fine to use laptops. Plenty of seats, very fast wifi, power outlets. There's no "menu", but they have tea, coffee, and pressed sandwiches (which were tasty). The vibe is a little unclear though, it feels like a mix between a cafe, pub, bar, and restaurant. Anyways, it was a solid place to sit and get some work done.

A bit busy in the morning, and seats are not the most comfortable, but other than that, a nice spot to work from.

A great cafe near Zhongxiao Dunhua. Take the entrance up to the second floor. The interior is bright and modern. I particularly like the counter seats by the windows. The WiFi is extremely fast (350 Mb/s) and there are power outlets by some seats. The menu is not really to my taste, but there are some "ok" drink options. Good to arrive early since it tends to fill up in the afternoon.

A second location for ABC just down the road from the first location. This location is a bit bigger, with a large work table in the middle and several small tables. As far as I could tell, there is no time limit at this location.

Easily one of my favorite spots on the east side of Tokyo. Quite large inside with both tables and counter seats. Good natural light, and a nice cozy atmosphere/interior. Really the only thing missing is power outlets.

A nice little coffee spot not too far from Oimachi station. There's a small seating area on the 1st floor, and some more seating upstairs as well. I like the seats on the 2nd floor facing the windows. Power is available, I think WiFi might be available, but I'm not really sure. Staff was very friendly and welcoming :)

A very "random" cafe themed after Mr. Bean. It is good for working though, with decent wifi and plenty of seating (indoor and outdoor).

A small cafe with an extensive coffee selection, as well as some tea and food. The seating area is small, so if you arrive at a busy time you probably won't get a seat. Morning and late afternoon seem to be less busy. The interior is nice, with chessboard styled tables, and stained glass windows. Friendly staff, comfortable chairs, there are power outlets along the wall, and the WiFi was quite fast and stable. Definitely a comfortable place to work for a couple of hours, but not really suitable for extended stays.