I have to disagree.
I flew Sun Country MSP-SFO and return in February. I was not all that impressed. The plane was clean and reasonably confortable. However the breakfast from MSP-SFO was awful. It was the sausage/omlet/egg sandwich thing. It was totally disgusting. It also seemed as though all their flights are late. We were held for 25 Min to wait for connecting Pax from DTW and the return from SFO was an hour and a half late. Considering I only paid $206 dollars for the ticket i was satisfied. But I wouldn't rave about it. There is a reason why my friends call it GhettoAir. The fact that the Fasten seat belt and No smoking signs were in Arabic with tape over them with the english written, was not particularly confidence inspiring. Also, the HHH terminal is like a big greyhound station, I had never been in a line to check-in that was that long before, it was the length of the HHH terminal. They need to work on reducing their queue length, perhaps this will change with the new HHH terminal.