I booked this on Ctrip and got an amazingly low price (about US$20/night), so I wasn't expecting much. But the room was big, brand new, with all the mod-cons, and a very comfy bed. The whole building seems to be brand new and so everything is clean and works as it should. A 5-minute walk away is a huge modern supermarket with everything you need for snacks and travel meals. The hotel is also a good base for visiting all the sites around Jiayuguan as it's on a major intersection (no noise in the rooms though) and so you can jump in a cab to go in any direction you want.
Thoroughly recommended and will stay again.More