I have just spent 3 weeks in Marta's lovely apartment in Florence. Everything is as it looks in the photos, the apartment is clean and modern but with some original features, giving it a unique character. The apartment has everything you need if you want to stay in and cook, or do your washing etc. And the bed was very comfortable with super air con!
As a solo female traveller I wanted to stay somewhere where I would feel both comfortable and safe, and this is exactly how I felt there. The location is excellent, being on the Oltrarno or "other side of the River Arno", there is a more relaxed atmosphere to other more touristy areas but you're still close enough to the Ponte Vecchio to walk to everything. There are also some really good places to eat near the apartment, and they're more reasonable and traditional than some of those on the other side of the river.
Marta herself made the experience even better as she was quick to answer any questions I had both before my visit and during my stay.
Do not hesitate to book this apartment, I will definitely stay here again and will be recommending it to anyone I know travelling to Firenze.