The product works perfectly, every fuction is just as it was promised. I really appreciate the reverse mode to decrease pressure after releasing the trigger.
The first time I used it, I found out that the original squeeze tip did not seal in the tube, so some of the squeezed glue flowed back behind it. I used a 3d printer to print the included push-out adapter which seals with a rubber "O" ring, and it works perfectly!!
Ferenc 
