Push style.   20" wide path. Ideal conditions; .  Tips before renting!  The grass should be completely brown or cut low to use this. If the grass is too long it will not throw the thatch into the bagger. Ground must be dry for best conditions.  You should be able to pull thatch from the ground, kick the ground and dust should fly, not wet.   5.5 gas Honda engine.  5-position, single action height adjustment.

Can estimate same amount of time as it would take to mow your lawn with a 21" mower (other than emptying the bagger).