Let me start by saying that I dig the concept - Pick your cut of steak (or other grill-able meats/seafoods) and cook it to your specification on a personal rock that they serve it on at your table. when this place first opened, I was really all about, but lately, it's diner beware.
For instance: The last time I ventured out to this pace for lunch, I ordered a strip and two sides (one was the Avgolemeno which was tasty) but I found myself sawing the crap out of that steak to get a piece free to cook on my rock. At first I assumed dull knife, but then I took a bite and struggled to chew. It was the second tough cut of beef I'd had there and it wasn't pleasant.
In past visits I've tried the shrimp on the stone which was decent, but also a few of their Greek entres. All of them were average. If it weren't for the lack of Saganaki and Avgolemeno in Akron, I may not be tempted to return.
If you're looking for a new experience or just feeling like an out of the ordinary dining experience, give this place a try or two. Being so close to this restaurant, I can say that it will be pretty easy for me to drive a little ways past for a meal that's a notch or two up.