Hi, I honestly couldn't give a copies per cartridge/set of carts as I'm not sure. The ink gives more prints than my 2100 did, but the carts are bigger so it should do. I've printed about 50 A3+ and at least the same at A4 this year and I'm sure that I have had to replace all the carts once (apart from matte black) and some of them twice, maybe one or two are onto their 3rd but I can't say with real accuracy. Maybe I should start keeping a log of what's printed and when carts are replaced - I might do that if I can remember to start it!
The one nuisance is that although the matte black cartridge is in the printer as well as photo black switching to using matte media starts off a cleaning cycle that wastes some ink, and it's the same when going back to using the photo black cart again. I don't know if the new Canon behaves in the same way.