It's not worth the upgrade for miles or money
It's a flight that is 1.5 hours. Settle for the biz class seats and pay for your drinks or snacks. The biz class seats are full on and lay completely down, with the full entertainment selection. I mean, yea, it would be cool to get the "Flagship service", but really you only get a meal and a few drinks..
not worth the upgrade price, or miles in my opinion.