I like the suspension on the IS2000Z. Havn't ridden any other though. In 3yrs had to buy a hydraulic reservoir $80, two back tires -worn , two front tires-nails, gas gauges don't work-need to try to reglue with something that can handle the gas/ethanol, High lift and hockey puck took out the impeller-bagger, two idler pulleys-bagger.
Has over 900 hrs seems there's some oil where the line connects to the wheel motor.
I drive it full speed on several lawns and sharpen the blades twice a week. I'd buy it again.