Overall the PureVia is not bad.  I tasted it first by itself.  It is very sweet and had some type of tang or something on my tongue that I can't describe.  I then put it in my tea.  I did measure it on my spoon first because it seemed very sweet so I didn't think I'd need as much.  It turned out the little envelope was just the right amount.  I do notice a difference in the taste of my tea and a slight aftertaste.  I will probably finish the sample box I received.  Not sure if I will buy it - it would depend on the cost.