Great quality printing and scanning as long as the ink holds out. Unfortunately, not worth it!
The ink tanks are designed with a "life" so no matter what you do, even if you think you are cluey about refilling, you will not get more than about 8 refills to work before buying new ones and even then there is a high risk of new ones not working anymore. It is sad but it is sometimes just cheaper to throw the whole priner away and buy a new one that comes with full cartridges/tanks.
Great printing and scanning as long as you can afford the ink cartridges after 8 refills. A new set of ink tanks is worth over a third of what a new printer is worth, if refilling it doesn't stuff up the whole printer! I am very disappointed in Canon for designing the ink-trap into this otherwise masterpiece of a machine. Shame on them. Avoid this purchase like the plague.