I’d wait and bid the A220 after 5-10 deliveries. Friend who flies the E190 calls it a “giant BIC razor” with very uncomfortable seats and clunky HUD up front. I actually spoke with a Delta pilot training on the A220 and he said it is the easiest airplane he has ever flown and very comfortable up front.

Unless you simply can’t take the redeyes any more, I’d probably wait for the A220. Obviously commuting on reserve would be a big consideration. It’s all about trade offs....