Here's what I found:
describe the accent as inconsistent, with some comparing it to a "female Dick van Dyke" or noting frequent mispronunciations that can be distracting. Character Fit edenbrooke audiobook
Here are the details:
Because the story is told entirely from Marianne’s first-person perspective, having a female narrator makes intuitive sense. But Sutton-Smith’s ability to drop her voice a full octave for Philip’s dialogue is the reason listeners cite the audiobook as their "gold standard." Here's what I found: describe the accent as