Pros: There is nothing good to say about this product.
No hay nada bueno que decir de este producto.

Cons: Poor quality of finishes, two screws were missing,does not fit well,really fails to use the 225g that stays in the xbox restarts when the remaining 120g HDD free and you can only really use 110g or so.
Mala calidad de acabados,le faltaban dos tornillos,no encaja bien,realmente no llega a usar los 225g en que se queda,la xbox se reinicia cuando al HDD le quedan 120g libres y solo puedes usar realmente 110g mas o menos

Bottomline: It is better to buy from HDD120g is cheaper, you will have the same ultimate capacity and the xbox will not restart (I guess).
Es mejor comprar el de HDD120g es mas barato,tendras la misma capacidad final y la xbox no se reiniciara (supongo)

Pros: Upon opening the box and inspecting it, its hard to tell the difference from an OEM one. For this price, I can only assume its not made by Microsoft but it looks SO good, it would be hard for anyone to tell any difference. Its even labeled on the outside as 250GB. After installing the HD, it needed a system update and found 228gb of storage. I started downloading all my stuff like mad and have had no problems yet.

Cons: The only thing odd with mine was the plug that goes into the 360 itself was sort of skewed. I just twisted it a bit and with a little bit of a push, it clicked into the 360 no problem. Also, it seemed to rattle up near the lever a bit, but once installed there didn't seem to be anything wrong with the HD.

Other Thoughts: I noticed in the memory-menu it recognizes it with Chinese (?) characters, but it doesn't seem to make any difference. The box was labeled as a 'Modern Warfare 250gb Ed' HD and even showed the picture as black, but it was gray inside. Also, my 360 is the Pro20Gb one (the one with the lgr CPU, but smaller GPU). So if there is any question about compatibility, you should be ok. Obviously notice that this is Feb 2 '10 after the system update and its working, so no worries (yet) about Microsoft blocking 3rd party HDs.

Bottomline: Great buy for the price and capacity.