Why do you need to take it off?
It's incredibly easy to remove though.
First, peel the silicone off slowly
Second, what I do, is take the back off where you can dock it, hold the bottom part of the hard shell and put two thumbs on the iPad, and then push up. It separates the two pieces, and I can get it out.
The iPad is tough, just take your time and you'll get the hang of it.
I take mine out of my otter box about once a week for a full screen cleaning, then it's back in.