I successfully used X-plan on the BL + BL I picked up last week, ordered in late Dec/early Jan. I picked up an MCA membership in mid-Dec and the dealer didn't initially ask how I qualified. Overall, it worked pretty well with some exceptions:
1. My sales person got fired 2 weeks before delivery...
Finally done with the waiting - BL + BL is here (order entered in early Jan, arrived yesterday). Trade-in on the right for comparison (Golf Alltrack - fantastic car, but we wanted something a bit more rugged).