I dealt with DR twice... The first time was fine, the second was the last. Basically, they took my money and didn't ship an expensive lens for more than a week. My emails went unanswered until the item was finally delivered at which point they wanted to know why I was tense.. I have no problem waiting for an item but BE HONEST if it's not in stock.
I looked around and discovered that there are several suppliers that are less expensive, more reliable and faster... The usual suspects... Aden, B&H, Adorama and 2filter....