Product review (5 stars): Followed a 'how to' guide online and saved myself hundreds ...
Followed a 'how to' guide online and saved myself hundreds replacing this unit when my Frigidaire's factory control board decided to stop working intermittently, while setting off alarms.  A couple of the buttons didn't completely align with the OEM places, but so long as you're not in the habit of constantly adjusting your temperatures, it's really no big deal.