Do I need a inspection when a new ac installed?

So my insurance is going to replace my indoor and outdoor ac/heat unit. And I have to pay around $900 total out of the whole cost of replacing it. And they want to install a lennox. And they giving me a option to have a inspection done for additional $250. So my question is should I pay for the inspection? is it worth it? I am still getting updated information how much they will pay for a new unit. so will update that soon. and if any of you have any more information how the insurance handles this kind of situation, any tips would be great. Specially since they love making money.