I've had both. The Reese could be a PITA because I had to drop the landing gear and reduce pin weight in order to get it to slide, then pull the landing gear back up. Advantage was it was light enough to take out of the truck by myself, and was considerably less expensive than the Superglide.
The Superglide was great as it was automatic and I didn't have to think about anything. Downside is it was more difficult to hook up (problem with my king pin), and that hitch is a HEAVY mother. You need two men to get it out of the bed of the truck.
Whatever you get, strongly consider getting something that has under bed rails. Makes the bed a lot easier to use when the hitch is out.
Good luck.