Do understand a push mower leaves nicer looking cut, because the riders wide tires push over the grass before its cut.
is your yard level? its important to alwats be aware when using a rider of the tip over danger, even on a minor slope it can and does kill people. use a regular mower for slopes and close trimming areas. How open is your lawn, if you have lots of bushes and hedges and obstructions they can be a pain in butt. same for scratch stuff like rose bushes and things with thorns that will flatten your tires.
Now that your questioning your new purchase consider spending a bit more.
rather than a rider a lawn tractor can add lots of functions like snow blower, tiller, no matter what get a pull behind cart and where will you store it? Lawn cart with vacuumn makes fall leaf pickup easier.
We bought a rider and between the lawn obstructions, flat tires from roses, our new fence being in the way, the kinda junky cut appearance, our cost cutting rider lawn mower rather than a extra few bucks for a lawn tractor, needing more exercise, our mower broke and I finally decided the regular walk behind was just overall a better choice.....
havent bothered fixing the rider, these are the things to consider BEFORE making that spiffy new purchase!