I asked them for some restaurant recommendations in the Detroit area and they really came through. On the same call I also asked them to locate a particular cigar I enjoy(Montecristo Series V). The best part of the experience was the concierge found a cigar friendly restaurant that brewed its own beer and arranged to have the box delivered for my after diner enjoyment. I am a +1 member and so far cannot imagine how they could improve the service. I asked if +2/3 members got anything extra in terms of service and they denied that they work any harder.

I would imagine a card like the Chairman might be helpful in cities with exclusive dining like NYC or Chicago otherwise the normal ML service should suffice.