We have done the Plaza Inn breakfast twice. Food aside, which is just okay, our first experience there was amazing. It was pouring rain outside and I don't know if that was the reason but we had like 12 characters. It was one of our first character meals at DL after many at WDW and we were blown away by not only the number of characters, but the interaction and the random variety. It was fantastic. So, when we went back to DL the second time we were sure to do this breakfast again. I have to say it didn't live up to our first experience, but was still decent. There were less characters (5 or 6) and it felt more rushed. We left feeling a little meh about the whole thing.
This time we decided to do PCH Grill again instead. We did all the character meals on our first visit and only a couple on the second visit. We loved PCH Grill. My only hesitation is that my 18 month old LOVES Hook (so funny) and the Peter Pan ride will be down and I am not sure how we will see him otherwise, although he won't know what he is missing anyway. But I know he would have a great reaction to seeing Hook. So, I am still debating if we should do Plaza Inn again or just skip it. I do love the location, though- it just feels so Disney to me.