cruzer--have not done wheelchair from AA, but did it from Delta on our just finished trip, through Atlanta. On both trips, it was the same person who got us all the way through. Back through Atlanta, it was quite a production because the train was closed down for the night. We tipped $10 there. Upon arrival in SXM, you had to walk down the stairs, and I walked to the building, at which point the attendant took me through the local line, and waited with us to claim the luggage. We also tipped $10 in SXM.