Not used one myself, but they look very cumbersome to me, there are better options out there IMO, aquadapter, aquatap, tap valve.
Ive made a valve with a u bend instead of the loop
Spent a lot of time and money this year working on it. Just got fed up with Pure freedom rivets failing, so got into work shop. And made my own.D.m fit 1/4" u bend dm fit 2 x 1/4" barb inserts 25 X 25 x2mm thick aliminium angle bracket cut to size then 1 stainless steel bolt which fits t a 22 to 30 mm industrial electrical clamp rubber lined most popular pole size, you can get different diameter clamps to fit various size poles would have liked to use stainless steel bracket but to hard to drill holes.got 16 poles rigged up work great with no leaks.