A really great place to stay from which to explore Athens. Public transport is close by for those who don't want to or can't walk far, but many things are really easy to walk through. The neighbourhood has wonderful cafes, restaurants and bars, as well as all the shops you will need. It is safe at night.
The apartment has all the amenities you need (I was there for 6 weeks so had enough time to experience it!) Kitchen equipment is basic but adequate, though no microwave. The washing machine was a huge bonus! I was there during a cold spell but extra bedding and heating was available. Bed was comfortable, too.