Pros: the landlord is very communicative and responds fast. This was a last minute reservation and we didn't have any problems. Check in is very simple. The flat is located in 3 min from the metro which takes you to the city center quite quickly (10 min approximately). The house is equipped with a lot of things like washing and coffee machines, drying rack, AC, TV, fridge, toaster, dishes, soap, shampoo, toothpaste etc. The house was tidy. Nights are very calm and easy to fall asleep. The bed is spacious (although one of the pillows is a bit too stiff). Wifi is also very good (my data didn't work in the apartment-I have Czech Vodafone).
Cons: it's a basement apartment (although it has a window, still a bit of humidity smell). The upper neighbours have small kids and a toddler so there was stomping, running, breaking stuff, screaming and shouting a lot (this is manageable if you don't stay at home too much as you might want to explore the city more and at night it's calm). The shower is really small and uncomfortable to wash your head as you will need to scooch to be able to wash your hair or take the shower head and wash it with one hand. There's a cockroach problem, we killed like 7 small cockroaches in 10 days (I assume that's normal for basement apartments in Greece especially with a lot of heat outside, not unmanageable but just something to consider).