The actual printer itself is great - highly featured and good quality. On the downside, the set-up instructions really take serious concentration to follow (and I'm experienced at these type of things). The process itself is quite involved and fiddly. Ultimately I couldn't connect it to my WiFi and eventually (after four days) got hold of Canon support who advised me that no Canon printers support 5Ghz wifi. My router is five years old so I suspect that this will be an issue for many other people too.
I've had a Canon printer before, this one seems much better. My old one had a pop up window this one hasn't but causes no problem. Very pleased with product.