I just ate at Hwy 55 Burgers and Shakes and my burger was delicious. I had a cheeseburger with onions, slaw, and chili. I also enjoyed a chocolate shake and shared an order of fries with chili and cheese. Everything was great except the fries they were just ok. The service was fantastic however, the place started getting crazy busy as we left. I was glad we got there before 6 as it was Saturday night. I will go eat here again. Enjoyed a nice sit down meal for 2 people for 15 dollars not too bad! The 50's theme is really cute and unique for Harrisburg.