I understand most people don't like Ebay because of the fees, myself included. Problem is I don't have other ways of collecting payments other than Paypal for safety concerns of both parties.
Quality of kits will be top notch. Black powder coated front glass support, new 3/16" tempered glass, new channel for around glass, new felt for inside of window, new weather strip for outside of window (to keep the elements out of the door for you back east people), new scissor type regulators, and complete installation instructions.
If the rear window guides on your doors are in bad shape, (worn or missing felt) I recommend replacing those items along with the new glass kit as they these rear guides are not part of the kit.