We loved staying at Tonia's place. Despite our late arrival, Tonia was super flexible and checked us in after midnight. It was also really easy to communicate with her, as she would reply within minutes. (Though we had no problems, I am sure, if there were any, she would be right on call).
The apartment itself is really charming. Though the bedroom is quite small, it worked really well for us two girls. The biggest surprise, however, is the rooftop terrace. It is really beautifully decorated, there are sunchairs and to climb up there (yes you need to climb up two ladders) in the morning is really calming, before the streets start to get busy again.
You are right in the centre of Chania, so to get to the authentic restaurants it'll be 10 minutes max. by walking.
I can only recommend coming there and we hope to be back someday.