I'm a longtime UA flyer, but have gotten fed up with their prices EWR-Europe. Am now looking at LOT, MUCH cheaper-- but can anyone shed some light on their fare classes...Econ Saver/ Premium Saver ??? Not too concerned about the miles earned or checking baggae (as I only do a small carryon), but more with seat comfort, choice, check in etc. Their website only gives vague info and it appears all offer the same benefits (which I know is not the case). Any insight would be helpful. Thank you