@Lmm1967 - what brand home generator are you looking at? Could you PM some specifics such as size, prices and who is doing the install please. thinks about this myself and thinking Gentech or Kohler.
20kw - physical install was done today. Hookups of electrical and gas are scheduled for tomorrow. Like @anit77 said above - I've been able to find great & horrible reports about all of them.
I'll have this scheduled to exercise once a week and plan on having it actually power the house for a period of time at least once per month.
Yes - you read that right - our generator hookup is scheduled for tomorrow.
Luckily - the weather reports that tend to not enjoy inciting minor panic seem to indicate tomorrow is most likely not an event to worry about.