Cons: I was unable to travel with three suitcases, despite the fact that I was willing to pay for the third bag. I had to put some of my stuff in another bag and was charged overweight.
What infuriates me is the fact that at no point of the web check in process I was warned about this. No warning, no email, nothing.
I am never using Copa Airlines again and I am warning everyone I know not to use this third-rate airline ever!