The ink is top. Refilling is easy, but not easy: it requires a few steps, but they are easy to handle by anyone. If you do it well, there is no mess. Otherwise, the quality is great, I make no difference to the normal cartridge firmly. I have not replaced the chips, so with me now becoming an empty ink level is indicated, although the cartridges are full. Power however nothing: Print he does nevertheless properly. Compared with the original cartridges of this product, however, is so cheap that one can only hope that no harmful crap in it (or at least more harmful). Without concrete evidence but again the presumption of innocence: Top Goods, five stars!