It books into A (domestic first class) or D (carribean, canada and latin america), and is valid for 1 year from date of issue, however you should book them before ticket is issued to save the change fee (or pay USD 125 fee to add them later). You are limited to 2 stopovers, and 1 of those is used after you return to SEA. You could go as far south as Panama, as far north as ANC, and AA flies almost everywhere in the Carribean. You could even fly BA on a few of their 5th freedom inter-island flights in the Carribean. Sample route might be SEA-JFK-SJU-ORD-SEA.