IMO, SunCountry was more of a threat before they changed ownership and became a LCC/ULCC. They had a reputation for pleasant flights and good service before that. A more recent well-publicized incident---involving cancelling the last flight of the season to/from at least one beach destination (IIRC in Mexico) and stranding customers, forcing them to extend their stays and purchase expensive tickets on another carrier to come home)--really hurt their reputation