They are better since COVID.
I used to not care for the way they ran things before but I feel like they have it together now. I like the free seating, though I REALLY wish they'd be a bit more proactive about telling people when it's a full flight (they do that part) and asking people to scoot in rather than soooo many couples taking the window and isle hoping no one asks to sit there, or the solo person who sits on the isle and is offended when asked if others could sit there too. It's not their fault some people are selfish, but I feel like they should say something. If we nothing is said, they'll keep thinking it's ok. We're all in this together, it's not going to hurt you to allow someone to sit next to you for a few hours, you know it's going to happen anyways, you're just making everyone think you're a jerk. I feel like there is also enough room for everyone's bags as well. I haven't seen someone have to gate check something in a while.
Also, if you hate being in the mid-low C's and being seated separately, it is worth the $30 for the business upgrade. I've started getting it on all my business trips and it's a lot less stressful.
I greatly appreciate the sense of humor I feel the SW staff and pilots have. LAS to RNO was COMPLETELY enjoyable.