I recently purchased a for parts GBC on eBay for a good price in my 'dream' color (teal), with the only issue being the buttons not responding. I wanted to try my hand at modding without worrying about damaging my own handhelds, but when it arrived the buttons worked perfectly! Other than a quiet speaker (which I am looking forward to fixing!), a gross/dirty stained shell and missing battery door, it's in perfect working condition. I wanted to keep it teal since I've wanted one for ages, so purchased this shell along with new buttons, a backlit replacement LCD and cover screen to dress it up and it is absolutely perfect!!
The teal is ~very~ close to the original color if not the same, and it paired with white buttons and screen makes for a gorgeous re-shell!

The shell feels like the original. The battery cover does not rattle like the factory one. The quality of the molding is top notch.

When I received it, the first thing I did was put my Gameboy into it. Only problem I had was how hard it was to turn on the Gameboy. It loosened over time. I love it!!

Shell was purrfect!

When I ordered. I had hoped the item would be made from silver colored plastic like an oem shell would have been. Nope. This is a white shell spray painted silver. A little disappointing. They did do a good job with the paint however. It's nice and smoothly finished.

The site mentions that the White shells have hue/QA issues that don't align with their personal specificities and I appreciate that level of commitment. I wanted the white to see what color "issues" it has, but mine came in a very uniform white, maybe a little grayish hue. I paired it with a TFT lcd unbranded and white glass screen. Haven't put the gameboy down for more than a day :).