The apartment is very big and bright - it's actually two apartments that has been converted into one. It is absolutely great for kids - lots of toys, bunk beds, hideouts and some cool disco lights. The location is fantastic, just a short walk from the major tourist area and well-connected to tram and bus lines.
Larissa, the owner, was very friendly and responsive to messages which was also great. The cleaning lady, Esma did an excellent job and she was able to provide additional cleaning services for us during our month long stay.
We had a couple of issues - one is that there are no windows blinds or curtains on any of the windows so it was a bit tricky getting the kids to sleep at night. The other was that there were major renovations going on directly under and next to the apartment - the noise was immense. It started at 7am and also on Saturdays. The workers said that it would be over by September so you might want to check that's it's over before booking. There is a lift/elevator however you must walk up 10 steps to get to it.
There is lots of empty closest space to keep your things and ample towels, bedding, pillows etc.