Unloading is not too bad, its just scary to see it standing so high in the air. I also added levels on mine recently to make sure the front stays 2 to 4 inches higher and the side to side height remains the same. My jacks run at different speeds...
Here is what I use to load:
Scroll down to this section --> String's Wizzo Camper Alignment Technique
http://www.where-rv-now.com/Notes/Separation/
Also, I have read about lower the drivers seat back as far back as it will go, then looking over your left shoulder and keeping the drivers side wheel well parallel with the side of the truck camper (I tried this and it works great. I have 1 inch on each side.).
As others have said...slow...slow...slow...