The right hinge on my original GPD XD has cracked all the way through, even though I treated it like it was made of glass...and both hinges are now floppy, so I ended up looking around to find something to replace it. The XD Plus is still stupidly expensive for what it is, and I ended up getting an X18 for around $75 shipped off eBay. I actually like the build of the case quite a bit more than the XD...it's not as sleek, but I never liked the feel of the hinges on the XD from the first time I opened it, and the X18 has bluetooth and faster wifi built in, so there are trade-offs depending on what you value in a machine.
I wish there was a custom ROM available for the device. I'd also like to be able to send the manufacturer an e-mail to push them to fix the issue with the controls overlapping if you do too much button-mashing, but Google isn't helping me find a contact. Anybody have any clue on that? There's a guy on YouTube who has apparently gotten them to release a fix for the refresh rate issue, so maybe they're at least semi-responsive.
For the price, it seems to really fill a void between the cost of the lower-end devices and the upper-end like the XD+. I could see a lot of people really enjoying this thing, especially if it got a little more support.