Hi all, I just returned from a road trip to Boulder, Co. where my dog Rusty and I bought Dan's 550 Ultra. It is a beautiful trailer, cute and small. It towed like a dream and we made it home to Richland, Wa. in two days. I haven't slept in it yet. Since it was cold, Rusty and I preferred to lay over in motels. I will be going out real soon to try it out. I was thinking that putting water in the tank may not be a good idea as temperatures go below freezing. I think Vodka would work as an antifreeze, but I am a non-drinker. I will just keep a water container in the car I guess. I will post pictures at some future date. I am glad to be in your community.