Tuffy Flip-N-Lock stereo cover??

Has anyone tried the Tuffy stereo cover lock? I want to strip my jeep down, but with my aftermarket stereo I feel I would be inviting thieves to take it. Any reviews you guys have would be appreciated.

Pic off Internet for reference

My concern with this is if they want it bad enough they will still get it but destroying the dash in the process. Be interesting to see feedback because I have an expensive deck also.

I've had one for a few years. About a year ago someone tried to pry it up to get the stereo. They ended up bending the locking tab and managed to get the cover off but with the extra time it took and alarm going off they split. For that I'm pretty happy with it. I mean with a heavy screwdriver you could break it apart but layering security (park smart, use alarm, don't leave anything inside etc) it saved my stereo. My .02$
Oh and no damage to the dash.