Workhorse
Model Year: 1990
I bought my 518-H when I bought my house in 96. It had been mistreated in terms of not housed under a roof. The hood was rusty. That said, it ran well has been a good mower/snow blower for me. I replaced the rear end with one from a 520-H as the hydro unit of the 518-H went soft. Now it pulls like a champ. It ain't pretty, but it's still running and serving the purpose.
Pros: Works.
Cons: Nothing out of the ordinary.