Had a wonderful stay at Gwendalina's place. The flat was immaculate, the location couldn't have been more convenient (right next to the piazza!), and anytime we had a question or a problem Gwendalina or her helper would respond immediately.
The flat is just above the fish market, which another reviewer didn't like, but personally I thought it added to the experience. I didn't find the market too noisy, and actually enjoyed being so close to the hustle and bustle. The flat is fairly high up so it's not like you're right on top of it.
Paid parking was nearby and inexpensive, which is convenient if you're renting a car. Gwendaline also provided some bottled water and snacks, which were appreciated.
Highly recommended!