I've only been here for breakfast, but the food and service were both fantastic. As stated in other reviews the prices are fair and the food tastes fresh and homemade. The little bowls of fruit are especially nice, you can get them assorted. We were told the owner makes their own preserves with the strawberries and blueberries.
The menu has a variety of options- including make-your-own omelettes and breakfast sandwiches. Raisin bread, peppers, cheese and eggs go oddly well together.
I should also note that the last time I visited (a crowded Sunday morning) there were only two young girls running the show- and they could handle it. I assume this was an understaffed day. Despite how busy it was the waitresses were thoughtful and friendly (when I asked for a bowl of fruit out server replied, "Absofruitley!" which I appreciated having dealt with cold Bostonian waitresses for so long).
I am not from Medfield but I lived there for several months and the town could use more places like this to keep the cute small town vibe going strong! :)