The ChargePoint Home Flex is solid, but it’s frustrating that it defaults to 16A out of the box, not exactly maximizing its potential. Good call on getting ChargePoint to adjust it remotely. That 40A sweet spot seems like the best balance between speed and cost without needing a full hardwired...
Yeah, Nissan seems to be missing out on some utility partnerships that other brands have. You might want to contact National Grid directly and see if they have a general off-peak EV rate instead of a manufacturer-specific one. Some utilities also allow you to apply for rebates based on charger...