I have the Demco Autoslider 18k and the Demco Hitch prep bracket. Installation was rather easy but due to the weight of the Autoslider hitch, you'll need some help lifting it into place.
Cons- the hitch is on the heavier side of hitches and without a hoist or another set of hands, it's not easy to lift out. Demco makes a lifting bracket that can be attached to a hoist for easy removal and install. The other con would be the size of the hitch. It's really big especially with the hitch prep bracket. This doesn't bother me though, and I have just left the hitch in the truck full time, which has been helpful when carrying smaller items in the bed, because they won't slide up to the front of the bed. So it also acts like a cargo organizer.
Pros- You don't have to worry about the front cap of the trailer hitting the back of the truck when making turns. You also don't have to get out the truck and pull any levers to make sharp turns. You can just drive and let the hitch do the work. It automatically adjust as you make turns. Towing can be stressful enough, and sometimes things happen suddenly or you might have to make a sharp turn to get in/ out of spaces or camp spots. The "auto" feature lets you focus on driving and your surroundings without worrying about hitting the truck. Connecting the hitch to the trailer is rather easy. The only inconvenience is adjusting the capture plate and bolts on the head of the hitch. But I find this to be a minor inconvenience. The hitch is more expensive than most hitches, but the cost of the damage to the truck if the trailer hits it will be way more expensive. Hope this helps.