Great for ingraining smooth straight stroke
Green laser for line is fantastic.
Red line for distance is not as good due to it going off the green line the further back you want your backstroke.
At £99 a bit pricey for what it is, then again if it lasts for life that ok, only time will tell how sturdy and long lasting it is.
I do think it has improved my putting and that is what it is all about.
Verified purchase: YesCondition: New