Those "NEW " bathroom in two day TV ad's

I can't see it being a long-lasting quality job. I spent over half of my life in home construction from framing, exterior/interior trim, to custom cabinet building and installation. Now I've been out of work for twenty some years, but I've watched the tile guys, tub and shower installers and plumbers then me putting in cabinets it takes longer than two days and a remodel even with existing plumbing would probably take longer yet.