For walking and occasional jogging check out the Sole F63 at Dicks Sporting Goods or the Horizon 7.0 from West Michigan Bike. These are light duty treadmills and will work best for users under 200lbs.
If you’re looking for a smooth, durable treadmill for running, regular use, or you’re over 200lbs, consider visiting one of the specialty fitness equipment retailers in Grand Rapids. These three stores offer delivery and set-up. (also ask if they’ll haul away the old one)
Village Bike & Fitness (three locations)