Looking to upgrade my RV battery to lithium - any real world advice?

Hey everyone, I'm finally looking to replace my old lead-acid RV batteries with a deep cycle lithium setup. The amount of info out there is a bit overwhelming. I’ve been browsing online and came across one site, National Battery Supply, that seems to have a lot of options.

For those of you who have made the switch, what's your experience been like? Any major pros or cons I should know about? Specifically, I'm curious about real-world lifespan, how they handle constant charging/discharging from solar, and if the cost is truly worth it in the long run. Thanks for any help you can offer!

(By the way, here is a link to the battery supplier I was looking at.)