The good news first: Romania has long had some of the fastest, cheapest broadband in Europe, so connectivity is rarely the problem. Add a mature specialty-coffee scene — roasteries, training labs and serious baristas — and you have cafés where the coffee is a genuine pleasure rather than a tax on the table you are borrowing. A flat white in the ~12–18 lei range buys you a comfortable hour, and nobody will rush you if you keep ordering.
The limits are the same as anywhere. Café Wi‑Fi is shared and can sag at peak times; power outlets are inconsistent and often nonexistent at the prettiest seats; and the smaller, design-led specialty rooms are cosy and echo-prone, which makes long video calls awkward for everyone. The fix is to match the café to the task: a big room like Beans & Dots for a real work block, a small specialty bar like STEAM or Origo for a short sprint over excellent coffee, and a hotel-lobby café or coworking space when calls and reliability matter most.
Timing does most of the work. Weekday mornings, soon after opening, are calm and productive; by late afternoon and on weekends the centre fills with brunch and catch-ups, and a couple of cafés (Origo among them) hand over to an evening cocktail crowd. Plan deep work early, save lighter tasks for later, keep your sessions to a respectful 60–120 minutes per stop, and pair a work block with a midday walk so the day never feels stuck indoors.
One more thing worth knowing: there is no fixed cover charge for sitting and working — you simply pay for what you order, and the unwritten rule is roughly one drink per hour if you are occupying a table. By Western-European standards that is almost nothing, which is part of why Bucharest is so easy as a remote-work base. Tip when the service is good (rounding up is enough), and pay in lei rather than accepting a marked-up euro conversion. If you settle into a café you like, it is perfectly normal to come back the next morning and treat it as your base for the trip.