"On the fly" ease of use - speeds up the mowing process.
Quick fingertip or Handsfree footswitch controls.
1 year warranty.
Product liability insurance.
Hundreds of satisfied users in dozens of states.
I can only speak to the MasterChute, but they will be on all new mowers that we purchase. Actually we only have one without right now, and that's our oldest that we will more than likely replacing next year.