Taking off the Dual Pro is actually extremely easy, you just pull back on the silicone by the small section of outer shell above the mute switch, it pops right off.
My main concern with this case is does the silicone stretch? It seems like it might. I have one on my 5 right now and have since I received it on Nov. 7 but I like to take it off for a good cleaning at least once a week. Anyway, any thoughts on the durability of the inner silicone layer? Other than that one minor concern I absolutely love this case!