We had a very pleasant stay here in early October 2014. The place is 2 min walk from the main square, newly refurbished, very clean and very well run. Breakfast good and tasty, served on the outdoor terrace, which we really liked a lot. Good internet connection.
Sonia (the owner) very nice and helpful.
Atrani is a medieval small town very close to Amalfi (10 min walk through the tunnel), but quiet, with a better swimming area in our opinion (you can swim in the open sea, not in the port – yes, we swam on 9th October!) and several restaurants in the main square, frequented by both locals and tourists.
Excepting the places in the main square, almost everything is accessible by narrow (1 m) gangways and stairs, so keep this in mind (this is true not only for Atrani).
About the bell tower: surprisingly, because there is a lot of ding and dong going on (11 o'clock is 4 dings followed by 11 dongs, after this comes 11:15 which is 1 ding and 11 dongs, and so on) we grew used to it in no time. We slept very well with open windows, even though our room was facing the main street. (no AC, but the narrow valley and the night air from the mountain keept the room confortable even during the day).
I would advise against renting a car on the Amalfi coast. It is not needed (bus and especially boat much better), and the traffic on the coast road could be very frustrating for those who don't know the local rules.