12V, 24V or 48V: what did you pick, and would you pick it again?

The eternal question. Give the numbers, not just the opinion:

• System voltage and why
• Battery bank size and chemistry
• Inverter and solar wattage
• What you'd change now that you've lived with it

If you did it twice, tell us what the second build fixed.

I probably don't have a popular answer but I'm 12V lithium. My whole system is about get reworked though.