I used it on Monday.
I couldn't get instant approval because I used my cell phone number and that apparently triggered a fraud alert. I called Barclay's on Tuesday and they approved me within three seconds. I immediately went back into my shopping cart, checked the status of my card at which time it said approved. I then checked out and it populated with new card info automatically. Pretty seamless other than the fraud part. I got an order confirmation that night. Wednesday, I got a shipment notification about the printer I ordered. Nothing on the laptop a of yet, possibly because I ordered the 15" high-res matte with 7200 drive.