The guesthouse is located on a quiet street, about half an hour drive from downtown (or 1hr15 walking - which is a nice way to see "real life" if you have the time). Although I did not use one, they offer a bike rental for €7/day or €35/week. A transit station is about a 15-20min walk from the house. Ubers are available, and a trip to or from downtown seems to range €13-€26 (although I was touring during the week, so weekends may be more expensive).
In the room, you have a bed, desk, bench, sink, kettle and tea/coffee, and piano. The bathroom (toilet and shower) are located in the main home, and soap/shampoo/etc are provided. There is WiFi, although the connection is a bit weaker in the guesthouse - which is fine for vacation, but may be difficult if you need to work.
Marga is very lovely and accommodating - she let me come by early to drop my bags off, and was very understanding when I ended up being late (due to a delayed flight, getting on the wrong train, and no data to be able to update her).
I would recommend this place for those looking for something outside the city centre, while still being accessible!