Gastank was used to be known for his somewhat bizzarre unit setups that he used to annoy others. Or actually I'm not sure if he was trying to annoy anyone or was he just being newb'ish, but nevertheless that was what he was known for. These days he is not that bad of a player. He's still not "good", but he should be able to provide some solid play in his good days.

Gastank is like a Tai Kung type of figure. He generally has bad ratios on playmyth but this hides his ability as a useful team player for NFD.

I think he's improved enough to be worth a low 3

Gastank is as stable a player as it gets for the NFD team. He won't wow anyone, but he's worth a very low three balls, especially on dark maps.