I agree with the above. However if your total flight time exceeds 27 hours then you might seriously want look into getting a delta club pass at a minimum. My breaking point for these flight is right at 27 hours. It was pretty bad those last 3 hours after being in coach. My last flight was 32 hours in coach and never got a chance to use my lounge pass. Man that was exhausting. To me it seems business is worth paying extra miles for when that flight is more than 27 hours total trip time.