Stumbled upon here at the recommendation of one LLMs on a good work friendly cafe in the south area. What I liked first, and made my come back is that they have an up-front, day pass – which includes a drink and a snack, and most importantly settles the guilt of figuring the appropriate number of espressos to make it fair for renting a seat for a full day. It's 35k IDR / 1.8€ It's primarily a WFC (work from cafe) place, but besides each seat having plugs, they also offer a somewhat boutique assortment of drinks and food. While you can find plenty more modern looking and spacey cafes, this one is located inside the Sultan Palace area (Kraton) walls, it has a vintage (low key boutique) vibe and mostly local patrons.