I have used my "MagSafe to MagSafe 2 Converter" for about 6 months, and it stops working recently. By checking the product review in the official Apple Store Website, many people complain about the poor design of this product. (quote: http://store.apple.com/us/reviews/MD504ZM/A/magsafe-to-magsafe-2-converter?page=0&rs=newest ) I want to have 2 adapters in 2 places, so I'm wondering whether I should buy a new Converter or just buy a new MagSafe 2 Adapter. The thing is ... the new converter may still fail after a few months (some people even claim that their converter fails after 2 weeks). So I am wondering if this is an issue globally happening or just to some small amount of people. Please share your experience: - how long does your converter last (or when did you buy the converter)? - how long do you use your laptop per day (average hour roughly)? Thank you very much.