I purchased and installed the MC Cruise for my 2014 Honda GL1800 F6B last year. The installation instructions were hands-down some of the best I've ever seen. And once installed, the electronic cruise control worked flawlessly right out of the box. Since then, I've used the cruise almost daily, including on two cross country rides, one nearly coast-to-coast, from my home in Phoenix, Arizona, USA. The MC Cruise control makes it really easy to put many hundreds of miles a day on my bike.
And when I did have a servo problem after about 30k miles of use, Tony and Frank responded to my emails for help very quickly and had a warranty replacement part in my hands within days. These guys are the best! I absolutely recommend both the MC Cruise Controls company and the product to anyone who wants to add a true cruise control to their ride. If I buy another bike without cruise, I know the first accessory I buy will be from MC Cruise Controls. Thanks, guys! :-)

Approximate cost: $800