I am traveling to London and looking for feedback on JW or Marble Arch vs County Hall. Do either of them have 7 days a week concierge lounges that are free to Gold Members? County Hall seems better, but I may not have enough pts by time of travel. I have seen a lot of reviews on how great County Hall is, but nothing on Marble Arch. Also, I haven't seen any info on JW or Marble Arch Concierge Lounges. All of the reviews out there are great, thanks for all the reviews on London so far!