I like this arm band pretty well but the strap is kind of small.  It just barely fits around my arm and I'm not exactly a body builder.  The material is nice as it keeps sweat and moisture away from your iphone.  It holds the iphone snug inside so there's no fear of slipping out and it doesn't flop around while you're running.  The touch works fine, you just have to push a little harder but while you're running you probably don't want to be fiddling with things anyway.  All in all, I'm satisfied.