I had a pleasant stay at Gittas flat.
Marie, her friend, is lovely and gave us the keys to the flat.
It is 60 stairs up, and has a living room, bedroom, kitchen and toilet/shower.
There is a kettle if you want tea or coffee in the kitchen.
If you need a microwave, I didn't see one while there but it wasn't a big deal.
Regarding the bedroom, it's a comfortable size, but there wasn't really much space to put your own clothes (short stay so I lived out of my suitcase instead).
I'm quite sensitive skinned, and the bedding/quilt was rather rough to the skin, which made it uncomfortable to sleep in for me.
The walls are thick but the floors are thin, I mention this because one of the nights we were staying there, the neighbors diagonally below from us were playing loud music/partying late into the night, so it took a long time to get to sleep.
The flat does warm up quite nicely.
I would stay again but I found the price a tad steep (£149 for 2 nights) which would be equivalent to some hotel prices.