I would say so. Where I live, Southwest is the go-to airline for me and numerous colleagues, as they usually have nonstops to where we need to go, and generally are cheaper than the competition, sometimes by quite a bit.
Nailed my biggest gripe. I use GP as I have an Android phone, and they still don't have FltPlan.com integration into Android phone app yet, and it's been several years since they bought it.