I really only shop QVC before Christmas now and make sure I order early to get it in time, which I always have. I haven't had an issue with anything, except a UPS driver took my package to the UPS store instead of leaving it on my porch, but that isn't QVC's fault.
I agree QVC's prices are too high for certain things, so I find similar items elsehwere for cheaper and most of the time the quality is comparable. But then again, I don't need to buy dressier clothing from high-end department stores, almost all of what I wear is casual or business casual for work so I can go to Walmart, Kohl's, etc.
I think the big issue with QVC is that they want to be a premier shopping place for younger, upper-class women but at the same time, what they typically sell is geared towards female boomers, and they need to embrace their largest demographic. Because most millenials and Gen-Z aren't going to buy from a TV shopping channel, they're going to go to Target, TJ Maxx, Marshall's, Instagram, or whatever retailers popular social medial influencers go to. I doubt many of them care if Oprah or Amal Clooney (the names hosts always throw out) like something. Those ladies are old school and most young women I know or see online aren't talking about them.