I agree with all of the above. Although I don't normally use aftermarket detailing sets, I have used Verlinden products in the past, in the form of figures and accessories. This company was one of the first to produce detailing sets, in resin and PE, and was formed by Francois Verlinden, in Belgium, in the 1970's, starting virtually as a by-product of his own modelling endeavours. Since then, the company has seen huge expansion, and, now based in the USA, exports millions of products all over the World, and is copied by many.
Verlinden himself is a well-known and very respected modeller, with a number of books and DVD's etc describing 'The Verlinden Way', showing , mainly, some fantastic dioramas, and his company is appreciated by many, many modellers, including professionals, across the World.