Excellent case, especially for its price. Good materials and good construction quality. I have been using it since the moment I got the tablet, 6 months now, and it has no signs of wear. It has holes on the back for the sound to come out unobstructed from the speakers.
The support of the tablet with the flap open is quite good.
The only thing I don't like is that although it has magnets to keep the flap closed, it doesn't mean that opening/closing the flap opens/closes the screen, as it happens in similar cases for iPads, for example. To tell the truth, I don't even know if the tablet itself supports it, but even so, it should be mentioned that it doesn't work like that in the product descriptions.
Other than that, I am very satisfied.
I highly recommend it.