I usually don't find Blue Bottle Coffee to be especially comfortable to work from. However, this location has comfortable cushioned seats along the walls by the windows, good enough to sit and work for a couple of hours.
On a weekday morning it was quiet and not very busy, although I imagine it might get busy around lunch time or in the afternoon. There are plenty of power outlets, although the large worktables in the middle don't have any. The WiFi is a little slow, but it works.
(The restroom sink and toilet flush was broken during my visit. Hopefully that was just a temporary issue though...)
A quiet coffee shop near Yongkang Street. This cafe definitely focuses on coffee and their selection is very large. Even so, they also have a good selection of tea. The interior is quite simple, but feels modern and clean, and the seats are comfortable. If you need power you should get one of the tables by the walls.
A great place to work from on a weekday morning since they open early and it wasn't very busy. The upstairs seating area has nice views overlooking the river. If the weather is nice you can sit outside on the first floor, or on the balcony on the second floor. The WiFi is quite slow, but works, and there are some power outlets. It seems like weekend afternoons (and definitely weekends) can get very crowded.
Tucked away on the 2nd floor above a clothes shop. Large seating space, with plenty of options. The large worktable with high chairs is nice for working. I only saw a single power outlet though. Also, there is WiFi but I had a lot of issues connecting to it. Once I was connected, it was too slow to use, so I ended up tethering from my phone instead. As someone who doesn't drink coffee, I was glad to see that they have black tea on the menu, which was brewed very properly!
A bright, airy atmosphere with spacious interiors and large windows providing ample natural light. There's an outdoor seating area perfect for pleasant days, and a large indoor space. For working the counter seats are definitely the most comfortable.
There is fast WiFi (but limited to 3 hours per device per day). Few power outlets. From Ebisu station it is only a ~10 minute walk using the Ebisu Skywalk.
Toilets are inside the DCM DIY shop, on the same floor, but a bit far away.
A nice, large Verve not too far from Roppongi station. Large outdoor seating area, some seating on the 1st floor, and even more seating on the 2nd floor. I saw some power outlets on the 1st floor (not sure about the 2nd floor).
The "vervecoffee" WiFi is usually pretty bad. The "TOKYO FREE Wi-Fi" is best (faster and more stable), but it requires registration. Instructions are available here: https://wi-fi.metro.tokyo.lg.jp/en/
After struggling a little bit to find a good place to work in Ximen, I eventually came across this small cafe tucked away on the 2nd floor in a small alley. The name is a wordplay on "你有", which means "you have" and is pronounced like "neo". The interior is quite interesting, and I wonder if the wall of sunglasses is a reference to "neo" from The Matrix, maybe?
There's a large worktable, several smaller tables, and the counter seats on the balcony seem like a good option when the weather is nice. There is decent WiFi, but only a couple of power outlets by the large table. If it's busy there is a 2 hour time limit, but it didn't seem to be an issue during a weekday afternoon. One issue I had was that there would occasionally be quite a strong cigarette smoke smell (maybe coming from the outside or someone smoking on the balcony?)