I basically just meant if the cost per kWh is reasonable, you are probably fine. You didn’t need to live in the place beforehand to determine this — some leases charge by the kWh, but for other ones, you can just ask for data on how much the system generates per year, and how much the lease costs, both of which should be easy for the owners to document. Then you can just compare that cost/kWh number to (for example) what you pay for your own electricity at your house, and if it’s similar, that’s “reasonable.”