I highly recommend the flat of Ioannis & Vasiliki.
For me they are the best hosts so far. Perfect communication before the trip and even onsite by asking if everything is alright or if we need any help. That‘s role model.
Yes - the front street is noisy but after 1-2 nights you are used to it.
The location is perfect. Just a few minutes walking time to Plaka and Acorpolis. Really fine.
The only thing you have to be careful on is the keyhole at the main entrance of the house. I nearly trapped my finger 80 times or so. Door locks in Greece are quite different to the German ones. *lol*