of course it has better quality than most free vsts, thats why they are free. its gonna take mad skilled work with any effects to make free vsts sound like sampletank quality. i dont really know how you would improve the quality of a vsts anyway. sampletanks sound isnt amazing, but its a step above almost every free vst on the market, especially for strings and real instruments. if your just fucking with synths its less of a difference i think.