I can recommend staying at Despina's place.
It's spacious and bright, clean, and nicely designed. Communication with Despina goes smoothly.
Located in an Exarchia - it's in the cultural centre, full of cafes and restaurants, and many vegan places. There are grocery shops nearby and a local market with fresh veggies every Saturday morning. Most of the time it's quiet but it might get loud at night.
Kitchen is very well-equipped, there are coffee makers, some small food processors, forms for baking, many glasses and pots. There is a small table for a quick meal.
Bedroom contains a big closet and a comfortable bed.
Bathroom is quite small. There is good water pressure under the shower.
The living room has a big dining table, a bookshelf full of books (though in Greek!), a comfortable sofa and many sources of lighting.
There is a place to work from home, the Internet is sufficient, but sometimes it needs to restart.