I would say that this makes an excellent practice ball. I have owned it for several weeks now.
It has a nice touch, comes off the foot moderately quickly, and is an appropriate value/price for the quality. It holds its air well and has a relatively true shape. The white panels are of a different material than the silver panels and are a bit more rough, which helps give the ball good feel. The panels are thermally sealed as advertised, though not as seamlessly as is the case in the Adidas MLS match ball. We'll see how the ball holds up to the elements, but it is FIFA approved, whatever that counts for.
All in all, a decent ball. I was looking to find a ball that was of near or comparable quality to the Adidas TGII MLS match ball for a cheaper price. This ball does not achieve that -- it does not come of the foot in quite as satisfying a fashion as its premium counterpart nor does it have as good of feel or swerve. But it is a nice little package that I'd recommend if you can get it for $40 or so and intend to use it mostly in practice situations, not match situations.