You do need a protective case for your Fire HD, and this is about as good as you get, in my opinion, balancing looks, protection and usability. I have knocked off 1 star for the near £40 price tag and not always secure 'standing', but otherwise it is an excellent case and I would thoroughly recommend it.
Nicely finished in patterned leather, with rubberised edges to hold the tablet securely - the Kindle fits very snugly into the case, and there are cutouts for the connectors, speakers, earphone socket, volume control and on/off switch without compromising the integrity and protective properties of the cover.
There is a magnetic sensor in the case that puts your Kindle 'to sleep' when it is closed, and then 'reawakens' it when opened again. This certainly saves you shutting-down and booting-up time if you used the power switch instead.
The textured surface of the case means it is comfortable and secure to hold, and the cover folds right over the back without any problems at all.
I have noted issues with the case standing securely on a shiny desk surface - the back cover especially tends to slip on occasion (not every time by any means) and the whole thing falls flat.
That minor niggle aside, and the high price, this case is obviously tailor-made for the Fire HD and is a quality addition to your kit
Update - I see the price is now around £20 - that's more like it, Amazon!