Shay's is an ok greasy spoon. About average grease levels.
I came in here once to try it after having been dazzled next door at Annie and Earl's. I got a Belgian style waffle. I got some strawberry topping and a coffee. It was all alright, but came out to more than $7, which to me seems pretty high for this kind of a place.
Ambiance is "normal" for a greasy spoon diner. As with every greasy diner in Asiatown, the clientele is delightfully diverse.