I got the ugglys simply ordered out of the blue to see if they really work. I'm really surprised, with a ring on the target stick I could elevate the sensitivity of the standard 20% to 40% in BF4 and get along very well with it. The aim is to me so easily by hand, because you have more control over the stick.
The attachment was really easy to take a ring from the box, a minute or so hold in your hand and then was attaching no problem.