I am absolutely in love with the i(s) balls. More distance, more spin, longer life, better feel (than the Tour GI-SD balls I USED to play).
Distance - A little longer, not great, but nice.
Spin - You like tinkering with your game? These balls are the ultimate. Punch your short wedge with topspin or hit it full with backspin? Could actually be a consideration sometimes now. This ball will stop and hold greens like you've never seen.
Durability - You think $2.50 is too much to pay? With better distance and awesome spin, durability is the deciding factor in what makes these balls such a good deal. My first one did not wear out until after I hit my tee shot on hole #72. Consider the cost extra incentive to avoid OB and water.
Feel - I benched my Daytona in favor of my high end Redwood some time ago. Never did learn to ding it with consistency. Now I can. And my woods and irons? I do ding more often, but the real bonus is that my mishits are so much more playable.
Thanks WGT, awesome ball.
Disclaimer: I do not, never did and do not plan to work for WGT.