Sorry to bump this but...
I just wanted to update the skeptics on the performance of the chinese battery.
As for the exterior, the little rubber foot has come off through heavy use. As far as performance goes, its still going strong, though it still incorrectly reports 77 cycles even though there are way more on it, closer to 400.
So, I must recommend this battery because of the positive experience.
Yesterday my power brick gave up and I ordered a chinese one from ebay 🙂. I expect good results 😀