I feel it is good to buy from staples as your order gets delivered within 2 business days and the products comes with guaranteed quality. Its great for someone who uses the printer for daily use.
So far so good. I just got this printer last year. With this pack of ink i have only changed ink twice and usually all cartridges will need to be changed about the same time so it is convenient to get this pack with all colors altogether.
When your in the middle of a printing a presentation and the command comes up that your out of ink. What do you do? Well you prepare for these situations by have back up toner in your back pocket. Do you use a generic ink? Of course not. You use genuine HP ink that you purchased from Staples.