We did a month stay at Martinos, we loved it.
Great location in lovley part of town 15 min walk from old town, the sea, and 10 min to the station. Many supermarkets, small butchers, fruit and veg shop and amazing dairy doing local cheese all nearby.
The apartment is all newly renovated, everything seemed pretty much new, lovely high ceilings with vaults, small balcony facing the courtyard and another facing the street, big comfy bed.
Monopoli is a great place to base yourself in puglia, had more authentic vibe than ostuni or polingano, which you can reach easily with the train for day trips. There are lots of beaches to choose from and the whole town is so charming. We could have stayed for months more and not got bored.
Martino was very kind and helpful as well, can only recommend his apartment 😄