I recommend this apartment!
It is very well located and if you like to walk, like I do, you'll probably not use public transport - 5 day public transport ticket is still very good value for money if you want to go to the beach and see other parts of the city.
Noise was as expected from city centre, not a big deal in my opinion. There's a tram station super close to the apartment.
Sotris is a very good host, I was surprised how quick he replies to messages. Apartment has everything you need for a good stay - clean towels, shampoo, etc. - you might want to buy your own coffee.
Ultimate question:
Would I go there again?
Definitely yes :)