Lambic is an acquired tast! Of all the true Lambic producers around Brussels, Cantillon is the oldest, truest to process and in my opinion, the best.
Lindemans is not considered a true Lambic by most Belgians, because the yeast is not wild, but cultured and the same each time. Also, Lindemans does not use fruit for their flavored lambics, just flavoring. Lindemans also does not blend multiple brews (3 year old, 2 year old and fresh) to make their Geuze.
Hope that you will try Boon (pronounced Bone), Three Fountains (englishsized), Liefman's, Hanson's or even Mort Subite. These all make Lindemans look and taste bad!