The original one did not last long, the first rescue was a transformer model with interchangeable adapter plug at the PC: a true disaster over time, with false contacts as soon as you moved a little the craft.
This is really a good article: quality is the appointment (it runs for several months), the laptop works well despite its age.
The total length of the cables is significant (better than those before).
In short, it is a good buy and I recommend this article.
Edit: I just ordered a second for a friend, and it's still good.