Edit 16/01/2015
After 3 months of using the media still hold up. For cons, I want to note that people Cheetah mounts me (as for the comments here) contacted spontaneously following my comments for later offer me solutions found in default (although in my case without too many consequences) an exchange by a model considered more solid for example, in these conditions I see my notes on the rise for the monitoring of the product.
If you hesitate to buy, I think you can indulge knowing that the SAV amazon is anyway at the top level and that the manufacturer is concerned about his image.