I took my first test ride with my (new to me) UniGo trailer. My first impression is, "AWESOME!"
Congrats on one of the coolest trailers ever made!!!
Also... don't feel bad... I often check my mirrors just to make sure there's still a Uni-Go behind me.

You really do forget it's back there sometimes!! OFTEN!!
A couple of tips from someone who has one (you may already know this, so forgive me if I'm stating the obvious)...
1) Pay CLOSE attention to weight distribution. Heavy items go as far to the bottom as possible. This will keep you from getting that "wiggle" at high speeds.
2) Pay CLOSE attention to weight distribution. (I know... that's #1... it really does make that much of a difference on how it pulls.)
3) I find 25-30 PSI in the tire to work best when loaded (about 20 when empty). The suspension works well... but has very short travel.
4) Be sure to put a little grease on the hitch connection every time you use it. I neglected to do this at first, and the locking pin wore QUICKLY. A little grease in there also makes it more quiet on bumpy roads. I find a quick shot of spray on chain wax works well for this also.
5) Give yourself a little more "breaking" room... that trailer is light, but it'll still push you forward. On the good side... you can jam the brakes as hard as you want... a Uni-Go doesn't cause the bike to "fish tail". (I found out the scary way.)
6) Careful when pulling it into your hotel room... some hotels have VERY narrow doors... while the Uni-Go WILL fit through ANY door, I have a few scuffs on mine from door jams when I wasn't paying attention.
7) ENJOY!!!!