I bought this for $25 as a Gold Box Deal for the refurbished Kindle Fire I bought. I have a Kindle Keyboard, too, and I always found these covers very attractive so when the deal came along, I tried it.
Sorry but I'm not impressed at all, not even for the deal price I paid for it. I was very disappointed. This is very thin with no padding and there is really no way to stand the Fire on it to watch movies. They marketed this for being used for the Fire but no way would this have worked out for my Fire. I actually returned it.
The bands on the corners barely fit. I know you wouldn't want them to be loose, either, but they were so tight it looked like after a month or so they would have snapped. This would probably be fine at $20 for the Kindle Keyboard but I have paid under $10 for cases that are better than this one.
CaseCrown is a great brand that I would recommend. I have one for my Fire, my Xoom, and my Kindle Keyboard all at or under $10 and far better quality for this thing.
So no way would I buy it for the Fire. But if you have a Kindle Keyboard and love the look of it and are someone who wants style over function, then this would suit you. As far as protection, this offers very little.
Even for the stylish look of this, it is nowhere near being worth $40. No way.
This might be something I'd buy as a gift for someone with a Kindle Keyboard, but otherwise I would never purchase it again.