Superdrol is a decent anabolic steroid, but we would not call it superior or even “Super” as its marketing campaign once implied. What truly makes this steroid special was a group of men who recognized a hole in the steroid law and were able to capitalize on it, and in turn, make a nice profit. Due to the marketing and ease of purchase that existed for a long time, many athletes fell in love with this steroid, and it is a fine steroid, but there’s nothing magical or superior going on. Superdrol is a very basic anabolic steroid.
Conversion to trenbolone should be high, so effects should be identical to the injectable form - with the exception of the famed "tren cough". Whatever the explanation for "tren cough" (and many have been suggested), since it's a reaction to the sudden parenteral introduction of some compound directly into the body, it's highly unlikely that any orally administered compound will have the same effect. Trenbolone is one of the strongest injectable steroids on the market, so effects experienced from Trenavar can be expected to be largely the same - huge strength and size increases, accelerated fat loss, and enhanced vascularity.