We had a lovely stay at Isabelle place during 4 nights.
The appartement was sparkling clean, very well furnished, brand new and very nicely renovated (you have every thing you need from the bathroom to the kitchen).
The appartement is very close to the city center by walk and situated in a very peaceful area of Bayonne (easy to park the car contrary to the city center).
Just beware that the apartment is part of a larger house and that you will have to share the entrance with the owner who was nevertheless very quiet and gave us full intimacy.
Isabelle was more than helpful, very easy to communicate with, gave us some tips and welcome us with a bottle of wine, food and breakfast.