I haven't seen the vegan Go Veggie. There other "lactose free" cheese was not only awful, but also had dairy products! Yeessh.
I do love those grilled cheese sandwiches made from plastic wrapped singles and find Daiya shreds to be the perfect replacement.
vegan cheeses really are tempermental. I've had Trader Joes vegan mozzerella (heard it's Galaxy brand) and it's disgusting cold, and not good melted on things, but, I used it IN enchiladas and it was the perfect creamy addition