Do cheap Amazon microfiber sheets hold up?

Verified-purchase volume on budget microfiber sets is enormous and skews positive on softness and price, and Good Housekeeping has included a popular budget set in its testing. However, specialist communities repeatedly caution that microfiber and blends can trap heat, pill, or wear out faster than 100% cotton or linen. They're a reasonable low-cost option but not a long-term BuyItForLife pick.