Yes it's fairly good but as with all "super cases"!! If you catch the screen on the corner of something it's fecked.
My young lad regularly ends up wanging the wife's phone. Women there is just no telling them,but anyway. The trident is fairly strong.
The only downside with it,is the hard plastic cover is smooth and offers very little grip. Where as the griffin has a silicone cover over the hard plastic, if you get what I mean.
I found the tridents for sale on evilbay with a best offer option so I got the wife's case fairly cheap compared to amazon or any other cheap uk seller.