Just want to share a good experience with Copa Airlines.. I just flew Copa yesterday, IAD-PTY-GIG. First, even being just Premier Silver I got an email 24 hours before my flight saying that I was upgraded to their business class for both flights, which was already an awesome start. I was not expecting to get that being in a low tier with UA. Anyway, no lines at all, great boarding, no delays (even with the snow in DC), excellent employees caring of all customers from the beginning until the end. Was traveling with my wife and baby which were not upgraded since we were under different reservations but we got some space in the first economy row which helped a lot.. Had a big stroller and car seat which were also well handled.. First aircraft was a old one but the second one was one of their new ones. No complaints at all.. Really surprised, that was my second time flying Copa and it seems that I'll start booking more flights with them when I decide to travel to destinies in South America!