FWIW, Puttmaster Jr., a 6-handicap, prefers the QST over ANY premium ball. I have to agree that it is an excellent ball, especially for the price.Hit about 110 balls in 110 degree heat.
Also contemplated the B2GO deal from Srixon, but not sure which ball to get. Currently like TM Tour Response ( Great Ball and Price), Chrome Soft, ProV1. So I get ZStars or QStar Tour? QST reviews are pretty mixed, and I didn't like the few first gen QST's I tried, and the older Zstar was meh for me, but I understand it's been improved quite a bit.. I Hate to pass up a good deal, even though I have about 5 dz balls in my closet now.