Pros: The aircraft was clean and the appearance was the first thing I've noticed. The seats and the leg room (I am 6'4") was more than expected. The service of the crew was also a very good experience.
Cons: The web page for Avianca since I prechecked is slow and very complicated to navigate. We were also moved from one seat to another without letting us know until we were boarding. But this is such small DON'TS that its not even worth mentioning.