Your opinion on a keyboard case for Ipad Air

I have been searching the internet for a keyboard case for my Ipad Air. Some of the online reviews sound really good, but I don't like buying without seeing it and trying the keyboard. And is it easy to remove from the case? I'd rather not have to spend $100 either. If you are using one of the newer keyboard cases, I'd sure appreciate your opinion. I would have chosen the Apple keyboard, but it lacks the case to protect Ipad. Thanks much!