By combining the two types of cartridges together the XL being the most used in printing black is very beneficial. The colour cartridges are used very little however they are required. The delivery time is very good as usually you wait till you are running out then you order replacements. If you could guarantee the knock off replacements would work I would order them .I have ordered them in the past only to have my unit fail and I had to replace it because of trying those cartridges.

Price is fair for the product. It is a great idea to package the high yield black with the standard colors as I use black and white the most.

This is a quality product for the price paid and prompt delivery.

Très bon service

This is a great product received in a timely fashion.

Exactly what I ordered