My father and I sat at the counter yesterday morning. There was a line to get in, although it moved quickly, we seemed to be in the middle of the breakfast rush. Kelly O's definitely has an authentic diner atmosphere. From our seat at the counter we had a great view of the kitchen. They were slammed but managing it well!
Food was great! I ordered the daily special of the Kielbasa and Swiss Mixed Grill. My father had the Cinnamon Raisin french toast. One of the best mixed grills I've ever had! We are big breakfast people and the food is 5-star. Took awhile to get our order, but that's more due to our poor timing (we could clearly see the kitchen staff busting their butts to fill orders).
Waitstaff was friendly. Handled an unruly/rude customer better than I would have. Kelly O's is right up there with Deluca's and Pamela's for me. Seemed a little less touristy which was nice!
I would come back here for breakfast.
**** I highly recommend the fresh squeezed orange juice! I could drink a gallon of it in one sitting. So refreshing!