Since I was already silver when I signed up, I'd booked premium seats on my upcoming BOS-NRT trip before this promo. So that's not an issue. The real question is, will I get my upgrade 3 days out or just 1? So far, my BOS-DTW leg has 9 premium seats filled on a DC-9-50 (my first time on a DC-9). I figured the odds of an upgrade were very much in my favor as silver, now more so as gold. I'll find out soon enough, I hope, and will let you all know.