The extending handle made that much easier, and once I got the two magnetic pieces lined up they moved together smoothly. I lightly dampened the microfiber pad, made a couple of passes, then went over the glass again to finish it off. 

I bought this mainly for my SUV windshield. The magnetic halves stayed together during normal passes, and the pivoting head followed the curve better than a flat hand cloth. I still slow down around the edges, but overall it saves me a lot of awkward reaching.

Simple once the two pieces are aligned. The microfiber pads pick up dust well, and the handle helps with the far side of the windshield. Nice for quick cleanups between full washes.