I recently signed up for the Amex Skyguide Executive Privilege Club at a very low introductory rate. The key benefit seems to be the ability to be fully reimbursed 12x per year for one-shot airline lounge entries. Now where can I exercise this privilege to its fullest? Not at most boring U.S. legacy carrier lounges. What does that leave? Can you even pay to enter most overseas lounges, or is the sole means of access status as a same-day premium class passenger or FF on that airline/alliance? How about VS lounges accessible by VX passengers, like at SFO? Do you need a ticket on VX, or can you pay? Etc., etc.