I had an HP laser (actually three), and the replacement cartridges were so expensive that I bought a Brother 2270DW (d for duplex and w for wireless/wired/USB). I buy the high capacity ink cartridges and it is much cheaper and much faster than the HP. I've never had any regrets - having used it with Windows, Mac, and even Ubuntu one time.
(I love HP - but I don't know why they price their cartridges so high. I literally threw away my color laserjet because replacing all the cartridges cost almost as much as the printer itself. And then they have those cartridges which are "smart" and refuse to work once the date and number of images have passed - so I can't just shake the cartridge or print and accept the fact that it will be a "faded" print. No more HP for me.)
Are the JetIntelligence toners the ones that stop working after a certain date? That sounds very sketchy.