I visited both the Sakura lounge and the Priority Lounge today, before flying FRA-CLT on AA in business class. Both are pre-security, but the security lines were dedicated to 2-3 flights and not too long. The Sakura was peaceful, clean and not crowded at all. It’s maybe 5 minutes from the AA gate, so definitely worth the trip. Breakfast offerings were good enough but limited. They did have a full bar including champagne.
The Priority Lounge was crazy crowded. Wall to wall people. Certainly the easier choice being next to the gates, but not relaxing. The food choices were a little plain and underwhelming considering how crowded it was. Good alcohol selection.
I tried to get into the Emirates Club, being ExPlat, Lifetime Admirals and flying AA business class, but none of that worked 🤷♂️