Welcome to the forum!
I like our lithium. Many benefits, lighter weight, more capacity, no maintenance, decent ones have bluetooth control and monitoring.
Drawbacks. Cost, require heaters if using below freezing, on older RV's likely a power converter swap out needed to get a full charge due to a slightly higher lithium charge voltage. You will only get around 80% charge but lithuims don't generally care what charge level they are at. Instead of a converter swap you could buy a stand alone lithium charger to top them off if desired or get some solar panels for the last 20% of charge.
Lots of info out there.