It's difficult to say unless one is familiar with your background, experience level, age, and education. Generally, pay for the first year will be on par with the regionals. Regionals do have some good benefits based on their affiliations, such as travel, etc and while you might say commuting is not a big deal, it makes a difference if you are commuting on your own metal (regional or affiliate) versus OAL. From what I read, Sun Country is not a "commuter" airline as such and so there is the added hassle of getting hotels or crash pads before and after trips. If I lived in base, then it would easily trump a regional and make entry elsewhere quicker perhaps. No guarantees in this business.