I would give “0”
Star , if I could
I ordered Jan12. Checked status:arrivalJan18. Did Not arrive . Called Wayfair. Told: it has Not been picked-up 
Said they would send notice.
Called back Jan 24. Still No movement. Told they would send Another notice to pick-up.
Planned to call Jan28 to Cancel: Arrived that day at Noon.
HORRIBLE SERVICE.
Oh… about the product. It was advertised as A 4” topper. Maybe it’s 1.5.
HORRIBLE PRODUCT.
Wayfair, YOU SENT ME a request for this review.
I bet now you wished you hadn’t!