Prem worth is or not?

ARGO: I have run the game ok pretty much up until I got my IS4 without premium. After that I used it in combination with my elited VK3601H and Sherman E8 to finance the gold to exp transfer and continue up the ladders as well as use the credits I make to feed my heavy tanks. Most players will agree that premium is good as a tool when your going up past tier 8 heavies / mediums. It basically takes less time grinding but the only problem is the $$$ shock when your premium runs out and you were used to being pampered by the premium account.
In short, If you are the type that really loves to explore ALL the trees then premium is definately cost effective for you and well worth it.