I don't know if Pro is right for everyone, but two features I've checked out and will use are the summarize feature and the update to illustrations.
I've been researching some topics over the last couple of days and usually have to open up articles to get the gist of what the author is talking about. With the summarize tool I'm able to get a synopsis in the search panel. This will be a huge time saver.
The other feature I like is the use of AI with illustrations in the sermon builder. I don't view the tool as exhaustive, but a great starting point that gives me ideas on illustrations I can search out. I'm preaching at a recovery ministry soon and the illustrations about what recovery in the kingdom of God looks like were better starting points than I thought of.
I wasn't a big fan of getting AI into Logos, but I think these two upgrades are helpful and practical.
I like the idea of buying Logos like I've done before, but I also appreciate getting more new users into the full features of Logos at a lower price point. I held off on buying for a long time because of the sticker shock over something I might not use.