Pricing for east coast to FRA to BER has been fixed as far as I can tell, which is a good news.
I, as a titanium, flew PE JFKFRA with no lounge access with AS JFK lounge closed.
Their PE product is an absolute garbage. Two, three inches of more legroom but that's about it. It's equivalent to AA's MCE on their widebody. You are literally better off with AA+BA main cabin as an Emerald imo.