I bought a used Exmark from a coworker liquidating his side mowing business, 2003 model year, in 2010. I've used it way too rough on our rock patch, uneven, tree rooted up yard that is a glorified rock patch. Any issues I have had were self induced, but it keeps on going.

I think all the big names are good though, they're mostly all using commodity type components and bolting them to their frame.

Buy it by the pound is an old saying that is true.