The first time I tried to place our order, the application froze on me and wouldn't let me proceed to checkout. So I had to try again the next day. When I tried again the next day, I thought I ordered two units, but when the order was confirmed, it only showed one unit. However, InkTonerStore personnel were very quick and efficient in helping me the day after I ordered and got me the two units I wanted in the same shipment. The order was delivered promptly. We are reassured by the lifetime product guarantee and appreciate their loyalty credits program. All of my interactions with the phone personnel were excellent: very pleasant, knowledgeable, clear in their instructions. We will certainly order from InkTonerStore again.