I agree, this was a good episode, although very sad. I've seen some criticism that young Dean had brown eyes which was a little annoying but he was a great actor who captured Dean perfectly especially when he cried into Sonny's arms at the end, poor Dean! Also some people have asked why Sam never knew about this and it's obvious now that Dean was doing what he always does - protecting Sam, because he didn't want his little brother to know how much he gave up for him. I want to hug Dean even more than usual!