Spend some time on You Tube in this zero-turn category of mowers. Although there's no way to do research there, it will get you acquainted with some brands.

Keep in mind that whatever you buy, you will need service on it from time to time. Where are you going to have to take it for service, and how will they treat you?

Lawn services are not necessarily going to use the best brands, but they still need to get the jobs done. I've seen some raggedya** units running year after year by lower-end lawn services, but you never see the serviceability end of what they're running. I suspect that some of the dime store and big box carried brands may not be as rugged as what you need for over 2 acres.

Shopping from the standpoint of servicing whatever brand you buy is where I'd start.

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'06 E320 CDI
'17 Corvette Stingray Vert