Nah. They've been the same for over 4 years. The single is 4 oz's and the jr. is 2 oz's. Also, the people that work there has alot to do with where the store is. Wendy's is still a fast food restaurant, so it's not that tough to get a job there.
Well instead of someone cooking the burgers, they use a machine like McDonalds which takes the flavour out of the burgers.
Ya. It's just a giant clam shell grill tho, like the George Forman grill.