This is a great base. We took the bus from outside the flat to Mirti and then the metro into the city everyday. Took us under an hour (which sounds long but it gives you an opportunity to stop in other parts outside the centre to explore and really doesn't feel long).
It's a quiet enough neighbourhood that my son (early teens) went to the market stall every morning for bread by himself amd got to know the local vendor. We felt quite comfortable going back late too.
The flat is comfortable with loads of space. We used the patio, despite being winter, as it gets the sun and is pleasant to sit out. The kitchen is pretty basic but what more fo you need on holiday. Loads of hot water. Comfy beds- although very squeaky.
Laura gave us loads of info on buses and supermarkets that was really useful. There's a big supermarket within walking distance and if you turn right as you come out of the gate and head right down that road you'll find a lovely deli if you fancy splashing out (careful- it's easy to spend too much!).