There's a posting and subsequent thread started by a person who has had an unpleasant experience with Adorama. From my read of the thread it seems likely he ordered the wrong item, and when show the item number failed to correct the error before the order was confirmed. Of course, I could be wrong.
At the same time, I've been a big fan of Adorama. Their delivery has been amazingly fast, and never once have then sent me something other than what I ordered.
I'm sure I'm not the only one. If you've been happy with Adorama, let me hear it.