I finally received my cover yesterday. Even though PrinterBoy (etsy) sent it by registered mail, it took about 6 weeks to travel from Guadalajara, Mexico to Victoria, Canada - and the tracking shows it left Mexico City by airplane on Dec 26... bloody slow bastards at Canada Customs I expect.
Anyways, the cover is a decent-weight vinyl. The quality of the image looks very good, though the material is not as 'hefty' as the pleather covers that Barb's funstuff makes. With shipping, it was only about $17 US, so the cost was very reasonable. There is a gap at the back so you can leave the cables hooked up easily. The front allows you to leave controller cables connected with the cover on (see pic). Overall it looks good, and I might order some more of his covers for my other systems. I note he makes these imaged covers for quite a few different retro consoles.