Review (5/5): It has made my life a lot easier
I don't like hair on my back, yet I have lots of it. Over the years, I tried shaving, Nair, even had waxing once (never again because of the pain). With the Razorba, it contours well to my back and I usually begin in the shower, and "touch up" in front of the bathroom mirror.
Regarding its quality, I have dropped it many times and it split, but I was able to snap it right back together, and it has held up very well.
I recommend that for back hair, first use electric clippers to remove as much of the "length" of the hairs that you can, as that way, you'll simply have "stubble" to deal with. Shave against the grain, as it lasts a little longer.