This is a Willoughby classic. It's been around awhile (much longer than me) and my Dad likes to tell stories about going there when he was growing up. They have lot of regulars that come in. I'm currently working on my 'regular status' for the summer :)
Definitely go for breakfast or brunch. It's a tiny place and not ideal for big groups (try four or less). I just had the French toast today and was reminded how delicious it is.
Menu is super cheap/affordable too. Don't forget it's cash only.
If you're from the area and haven't been, I highly recommend.