Trailers

Hello, I'm thinking about getting a trailer to tow behind the bike on long trips (heading to other coast this summer), I know HD says no, but that's only because they don't make one... I don't have an HD warranty anyway, I've got another company, except for where I purchased the bike I've had to pay them and then get reimbursed. They sold me that warranty because I was going to change things over night.

Anyone have any experience towing with their bikes? How did it hold up, are there things you wish were better?