I bought this case when I first purchased the iPad Air (for which I also have a review on here), because I had that need to really protect my expensive investment. The case, once set up, is extremely well built. Holding the case while using it gives a real sense that this iPad is well protected from all of the small interruptions that can potentially damage the iPad's quality. Some reviewers (not just here) have complained about the added weight, but it is honestly a non-issue once it's used for a while, meaning you won't notice the iPad being any heavier than before.
The included detachable "shell", which can attached on either side of the iPad to protect its front or back, makes this purchase even better. Not only does it provide another layer of protection, but it also doubles as a two-position stand for the iPad that you can lay on a flat surface.
Setting this case up was a bit confusing, since the instruction manual was not detailed as I thought it was. In addition, once you place the iPad Air inside the case, you'll wonder about the difficulty of taking it back out (should you ever have the need to). Also, there is dust that accumulates from behind the case's screen protector, but it doesn't become noticeable once the screen is on and in use.