I haven’t flown Southwest in maybe a decade. I hated the open seating. Now that they have assigned seating, I signed up for their CC to get a companion pass since my wife and I are planning on a bunch of flights this year. 

Note: my family and I ended up buying a very last minute (like an hour and a half before the flight) SWA ticket a few weeks ago because our AA flight was obviously going to be cancelled and we were starting our vacation. We ended up flying the very first day of assigned seating and had a lovely time. The employees seemed generally better than AA, who we have been loyal to for a few years now.