I tried it recently and I liked it. It is a medium roast so it has more acidity than the darker Starbucks roast.
The flight attendant noted that the bag has to be placed exactly right or it won't brew properly. He stated on the MAXs, the coffee bag is easier to place than on the 737NGs. That makes me assume on the 737NGs if the FA doesn't put the bag in right the coffee won't be good. The FA said other FAs noticed the bag size issue too.