I use HP ink products for my business in printing documents on my HP OfficeJet Pro 8600. In past years I would try recycled cartridges at cheaper prices but would never do that again. HP products are by far the best on the market and the ink cartridges are no exception. The ink quality is great and the page capacity is exceptional. HP ink prints well in black and the color ink is always clear and vibrant. Printing on plain paper photo paper and heavier stock works well with the 950 and 951 cartridges.
Staples has a great deal on ink combine that with the money back from returning your empty cartridges and purchasing the ink and toner savings pass which gives you an additional 10% off the purchase of the ink. All totaled I have often received enough money back to pay in full and then some for my next purchase of ink. We have a small business with approximately 7 individual printers and this has helped tremendously keeping the costs down. The 950xl ink goes a long way and I am also able to purchase the XL ink for the colors as well individually to get an even better deal. The ink lasts quite some time even in an office setting.