I have an '03 2H GN Shadow with a weekend package in it and am very happy with the trailer. The horse area roof is insulated, the divider latch is excellently made, it has drop down windows with bars and screens, and the locks on the doors are the same as those put on Hart trailers.
I agree that Shadow isn't the top of the line trailer, but how many can afford those? It's not comparable to Bloomer, Elite, or 4-Star, but they are a decently made affordable trailer.
They are made in Fla, so they are very popular here and I have 5 trail riding camping friends that have Shadows.