I've always had problem-free results from Adorama on all the orders.
I've emailed Helen a couple times, and was always helped - even if they could not round up a 106mm lens cap or whatever it was I lost (and later found).
They phoned me (with Helen's prodding, no doubt, after I emailed her during her vacation) to price-match the last Sigma 30 they had, even though the other guys were out of stock.
I even like them enough to tell them the wording in the 645D ad was backward. With my token of appreciation received, I need only $8989 more to get one...
Most "problems" have a reasonable explanation, and many can be remedied with a phone call, sparing the moaning. In my years in the CS business, I've learned that lots of times it is someone else's fault