I sent mine in back in December- don't recall exactly when. I had an XPS, but have similar complaints as
@DarthVader above- the adjustment screws require a tool to turn (mine were tough to move, which is probably required) and there was no noticeable click. I had to watch the notch on the screw and count how many lines it crossed on the optic body.
I returned it because I had the opportunity to do so- and after mailing it in, I found the EO Tech Pelican case when I was packing stuff out of my closet. I have no idea what I'm going to do with a Pelican case that's only big enough for a can of biscuits.