What was there was good, but there was only one room of interest. The contents were informative and interesting, and the drawers full of informative and interesting memorabilia needed to be on display.
The fact that Cezanne had used it as his workshop to create so much beauty is impressive. To be able to say we were there is good but I think it needed to display some of his art to really add to the experience. Bluntly, even if it cannot be the originals, copies may allow a better understanding of the views that he was experiencing while creating his treasures.
The garden was an overgrown mess, rather than the complement to the building and its history to better explain the positive impact that it had Cezanne.