I have used Vision for many years, first on an Ernst Heinrich Roth (Guarneri model) back in college, and now my current instrument by Ran Dim (Chicago, USA). While many newfangled strings have come on the market, any player looking for a long-lasting, consistent, and pitch-stable string with plenty of power should not overlook the regular Vision set from Thomastik. Despite it's lower cost, it offers many of the characteristics sought by those spending $80, $90, and more on string sets, and it doesn't have some of the rapid falloff in response or "crunchy" tone that occurs with some of today's premium sets.