Review (2/5): Acceptable, but not a good razor.
I've been using a Mach 3 for many years. I decided to try defender out because they had a neat video and claimed to have a better razor. There is no way in which this is superior to the old m3. It shakes ok, but in no way better. It get clogged up just as much. It feels awful against the skin, gripping instead of sliding, a lot like an eraser. Its not as bad as the super cheap punishment razors, but that's about the best that I can say about it.