Highly recommend this lovely space and stellar host, both of which live up to their great reviews. The flat is thoughtfully laid out, attentively maintained, and full of peaceful charm. Every inch within is used wisely, and it’s sunlit all day by windows on three sides (in the dining area and kitchen, they’re essentially openable skylights). This keeps the flat feeling much larger than its square footage---something I’ll attest to even after having spent most of my three-month stay inside it!
Loved the sunrise river view from the comfy bed every morning and the original floors throughout.
Consistently decent Wifi. No desk, but the dining nook with built-in bench was bright and welcoming to work from. The bathroom gets chilly overnight in winter, but the provided portable heater quickly fixes that.
During the last month of my stay, weekday construction started early nearby; the thick walls helped but couldn’t eliminate that noise entirely. Neighbors were courteous whenever encountered and were generally quiet; one plays accordion but is skilled and considerate, playing only briefly and always at reasonable times.

Maybe check with Isabelle about the water heater before booking. The previous one failed during the last month of my stay, and municipality movement restrictions meant she could not obtain a replacement larger than 7.5 gallons---allowing only very short showers. She had plans to replace it soon with one much larger.
Isabelle lived up to her hosting reputation: she was extremely responsive, considerate, and invested in making the stay great!