I've tried em all, waxing (to painfull), In shower hair removal (time consuming, inafective and messy), and final asked my wife to endure shaving my back. So I had to try this product, and I am glad I did.
It does exactly what is says it does, it gives you a very close smooth shave and is very easy to use. The long arm and curve in the arm allows you to get the shaver everywhere. It's fairly quick too. All you'll need is a mirror.
If I was going to give any negatives then it would be that it leaves your back feeling scratched by a thousand cats, but there are no marks on my back and the slight discomfort is WELL WORTH IT.
If you have a hairy unreachable area men then you must by this. It really is the best product out there in my mind.