Yeah, I like how it remembers Fence sizes between screen. I switch twice a day between a 27" monitor (via a dock) and the laptop's own 15" display, so that's an invaluable feature.
My only request of Stardock is that they have it remember the icon size when transitioning too. I use large icon setting on monitor and "classic" on the laptop and have to switch manually. I Tweeted them the request, so will wait to see what happens.