I did have a Zaggmate with keyboard case, but found that it left the back of the iPad exposed and unprotected. The rubber feet lasted all of two hours, and came off and then it slid all over the table when trying to type. Also I found it very difficult to type on as the keyboard is recessed, and I kept catching my fingers on the metal of the case. Ouch. I admit it looks the part, but I was very disappointed with it in the end. Definitely not worth the money in my view.
I currently have a generic leather case with rubberised built in Bluetooth keyboard, which I got for £40 off eBay. To be honest, it's better to type on than the Zaggmate, it protects, the complete iPad, not just the screen, and it's easier to hold, if I want to use the iPad without the keyboard, than a naked iPad, which is what you get if removed from the Zaggmate.
To me the Zaggmate is all style over substance, and my current keyboard/case is all functional, and no style. I am still looking for that ideal which will look good and perform as well.
Sent from my iPad using iPF -- it's a cool app!