We had a great stay at Maria's place. It was very clean and had everything we needed. Maria is very good with timely communication. At the same time she is a laid-back host.
The location is convenient. Quick drive to Gallipoli - but we went there only twice (for dinner), because it was extremely crowded. There are some reasonably good dinner options right by the place. There is also a small grocery store with all the necessities, a bar, and a couple of other stores. The beach is right outside the apartment building. Beautiful, but very crowded in July (so we explored other, less crowded areas).
Overall, I would recommend Maria's place if you are planning to spend time around Gallipoli.