Would also be interesting to hear buyer's experience on how the product quality is, widely varying or consitently mediocre? How long did the ribbon last?
(And what situation made it break?) Do they hold up when the sh.t hits the fan (or ribbon...)?
I guess as always, you kind of get what you pay for.... my impression in general is that the quality of a lot of Chinese products is very variable, and you need to factor in a higher than normal possibility of getting a lemon, translating to 'throw it away - it's cheap', or using time to try getting it handled by the shop (good luck)
Anyway I see it you waste your time and/or cash.
One thing is sound, another is usability and value for money.
(Leaving the soapbox; Yeah, I know I sound grumpy, but, I'm getting tired of bad quality. Maybe I have a too negative view, though. That's why hearing other's experience would be great.)