Thank god for the 30 day return period.
Sorry to “rain on the parade” but the Woodway I ran on prior to delivery was much better. I MAY have gotten a bad one but to be honest, I am not willing to play games with SOLE to figure it out.
Back to the drawing board… thankfully my proform is still functioning… for now. 
Thanks for your review. After that poor delivery and assembly experience, how did the return/refund go? Did they make you disassemble or take the item outside yourself? Do you recall the names of the companies that handled your delivery, assembly, and pickup?
Sole states: “On approved returns, Sole will credit back the full amount paid for the unit and applicable taxes. The original shipping costs are non-refundable. These non-refundable costs include any upgraded shipping costs, assembly services, and rural or accessorial fees associated with initial delivery.â€
Sole offers Curbside Delivery for free, or you can upgrade to Room of Choice Delivery for $199, or Room of Choice Delivery with Assembly for $350. Did you choose that last option, and was your garage your room of choice? (Edit: I see from one of your earlier messages that your desired destination was your basement and the room of choice delivery was apparently supposed to be handled by the assembly company rather than the original delivery company.)
Did they not refund the $350 despite their refusal to deliver properly (plus what sounded like hardware defects in your unit given the vibrations)? Did they otherwise promptly refund the “full amount paid for the unit and applicable taxes”?
Have you tried any other slat treadmills aside from Woodway, and if so, how did they compare?
Did you find another treadmill that you liked?