I flew copa once. It was fine. Tbh I don’t fully understand people’s obsession with ‘better’ airlines. For the most part, they are roughly the same. All tend to nickle and dime, some slightly more, some less but their ticket prices are higher. My family sometimes claims they will never fly such and such airline, but delta is usually deemed ok. Meanwhile worst airline experience I ever had was with Delta during their crowdstrike debacle. Months and hours and hours later, still no resolution