PERFECT STAY. Thank you so much. The flat is lovely, just perfect - we could certainly have stayed longer!
We went with our son who is 3 year old and this was perfect for him too. They carefully prepared a travel cot for us, with cute sheets, a mattress and a nice pillow, which worked beautifully with him - he slept straight away every night.
The AC was broken, but they provided us with portable ones that kept the flat very comfortable during our stay.
Communication with the hosts was great.
Location is of course out of this world, however be prepared to research well in advance, because it is such a central location we found that there is a lot of tourist traps around us: i.e, expensive restaurants offering low quality food.
So just do your research about where you want to go, and then enjoy the breathtaking views of the church every time you leave the flat in the morning.
We would certainly come back.