We stayed 2 nights at Carmela's place, it was amazing, just as described, perfect little place to get away from the world, we will definitely return next year!
If you are not afraid of a little walking, it is totally okay to arrive by bus (except on Sunday, when there is no bus from Vieste to Peschici). It takes around 10 minutes to reach the old town, where Carmela advised us on some nice restaurant, which we also enjoyed very much!