Does the job and has helped a lot as Ithe DS has been dropped a couple of times with no damage to the DS. Only thing that annoys me is that the case sometimes pops out a little bit which has to be pushed back in again.
Bought it under a year ago and have been using it occasionally for gaming. After six months of use the buttons started to not work as well with the springs under the buttons getting a bit loose resulting in a slight delay. Most of the time it works well though and for the price this probably is expected.