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 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.
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.
This Starbucks is right in front of the beach and you can see the ocean from the seat inside. There are a couple of seats with outlets but not all of them. Also, the bathroom was out of service. WiFi password is just shown on the counter so easy to connect and no issue of signing in to use like they do in other countries.
This cafe is run by Syra coffee, which is a popular chain of cafe in Spain. The building is a coworking space / startup community called itnig, but the cafe is open to public with a plenty of seats. The WiFi is workable but not the fastest. Also, there are not so many comfortable seats to sit for the entire day, especially if you're alone. If you can't get the table seats, you only get the high stools or the weird mattress seats. There's not many power outlets as well. Also, in the after noon, the sun light gets bit too much and can get quite hot inside.