I have a 2014 RTL with a hitch. I use trailers extensively with any vehicle I have, even including a 1985 BMW 318i because I can do so many more things with a trailer than just the vehicle alone (even with extensive use of roof racks). So, it was a natural for me in buying a long-legged touring machine to prepare for the inevitable and get a hitch.
The OEM hitch is well-designed, and basically puts all the stress on the rear axle rather than the frame or a body part, which is the case with most bikes I've known about. The advantages of this are several and probably obvious to anyone who has towed trailers extensively and has taken the time to understand the dynamics of trailering using add-on hitches.
The one big drawback is this; the axle is "unsprung" meaning that all of the vibration and jarring motion transmitted from the road to the wheel is going to be transmitted to the trailer tongue without the benefit of being absorbed by the bike's suspension. A case of beer in a cooler mounted to the trailer tongue is likely going to be a frothy mess by the time you pull into a campsite for the night! Keep vibration sensitive cargo centered over the trailer's wheels and you'll be okay.
I've towed pet trailers, cargo trailers, and a fully loaded camping trailer with no problems at all, although after our last camping trip in the mountains, I became concerned about brake fade and so invested in a complete set of EBC brake pads and rotors (which I have yet to install because a double knee surgery laid me up for a long while and I'm only just now getting back into the idea of long distance touring again).
I hope that helps. Please ask follow up questions as needed.