The first time I went to Buca was for dinner, ordering off the family style menu. The food was great and the service was great. We particularly loved the gorgonzola and green apple salad.
This second time we went was for Sunday lunch and the food was disappointing. My side salad was warm and slightly wilted. As for the spaghetti and meatball, the meatball was great, but the spaghetti and its sauce was bland and tasteless. I actually salted my food, something I almost never do in a restaurant. The spaghetti didn't even taste like it had been cooked in salted water.
I'll give them another chance, just in case this was a rare occurrence, but I'd recommend going for dinner, not lunch. The family-style portions served for dinner are a good value and the food was very good.