We flew Midway several times, but that was 5 or so years ago before I became a frequent flier on Delta. Midway is a smaller regional airline that flies mostly jets (I think) and used to be affiliated with American (may still be, it's been a while). I remember it to be a decent airline. At the time the planes (we flew out of SWF - Newburgh, NY) we all new and comfortable. I would fly them again at that rate.