I really love my PVC enclosures. They're lightweight, and humidity and temps stay stable. I love that they're stackable. I like the options for ventilation, heating, and lighting as well as added items like basking shelves and windows on the sides that my favorite enclosure makers (Focus Cubed Habitats) offer. Plus I personally find them more attractive than glass tanks, but that is purely a subjective thing.
Re: chlorhexidine - I just get generic chlorhexidine on Amazon. Hibiclens is a proprietary name for chlorhexidine, so there's no need to spend the extra money on the name!