That's beyond lame and lazy.
I find Amex Concierge (Circles) to be the best. I have Chase/Ritz, Citi/AA Exec, Citi/Prestige and Merrill/Visa concierges as points of reference. Citi/Prestige (TenGroup) has stepped up their game 100-fold but nowhere near as seasoned/polished as Amex.