I have Pella windows in my home and one of the windows needed replacement. To their credit, for a reasonable upcharge, they produced and shipped the window via FEDEX Priority Overnight and FEDEX promptly lost it at their Memphis facility.
A 3 foot by 5 foot window just disappeared. Did FEDEX care? Nope. They just told me I should order another one and try and get Pella to cover it.
Pella was great and agreed to send another at no charge while they bang on FEDEX. Over many years I have repeatedly had problems with FEDEX losing, delaying and misdelivering items and avoid them at all costs.
On the other hand, UPS and even the Post Office always comes through. AVIOD FEDEX - they are incompetent.