Pros
Mainline carrier. Much smaller than the big 3 legacy carriers, so gaining seniority is much quicker. Good “starter” airline, rather than starting at a regional.
Cons
Frontier is owned by an investment company, which is completely out of touch with the frontline. The company in recent years, concocted a “Culture of Caring” catchphrase they constantly use - when everything about their culture, in reality, demonstrates the complete opposite. They shifted their business model to out/back to save themselves money, on the backs of FA’s, resulting in significantly decreased pay and essentially changed it to a day job - without the day job pay for every hour on the clock.