The print and paper quality is absolutely below par, half of the received business cards are not usable due to dirt (ink) leftovers on them, however since the overall quality is so poor none of them are usable. This is with the more expensive "Special" 300gr paper (no way it's 300gr!). Cut lines clearly visible, edges torn, just bad..
Avoid for business cards! Better go to your local printer to see the paper, print quality etc..