Renogy Solar thinking about getting into Lithium systems

The advantages are huge for Lithium, light-long lasting-fast charging, it's only a matter of when to take the plunge as the price is still high.
I'm on the fence but already planning an install next spring if things work out (I think to keep costs in line you still need to make your own, and while there are kits out there it is not trivial to make your own and the cells are very easy to damage)