I have a Greenfields 22 HP ride on. 11 Yrs old. maintaining 2acres regularly and a few times each year a second grassy block. Briggs & Straton motor.
Its served me well. Gets along at 14klm/hr.
A failing of the twin cutter disc type is that when the blades wear, it leaves a trail of uncut grass through the middle. Single disc is better.
Friend has a Toro. 7yr old. $800 repair bill. Replace carby. Old fuel gummed it up. Has othe issues as well.
Cheers