I have one,but use it only when my back isnt good,its just easier for me. I bought it some 20yrs ago when they were the in thing,but soon found they were actually frowned upon by my fellow golfmates so I went back to normal putter.
I will still use it if my back plays up for ease only.I found that for me ,it didnt really make much difference for my stats per se.
What are your opinions as to them being banned in the near future,Im sure views will be varied but interesting