DO NOT BUY FOR MAC OS X. CONTAINS NO DRIVER. FULL FUNCTIONALITY NOT AVAILABLE. IT MATTERS!!!
Hopefully you get this before anyone else makes the same mistake as me. First off, here's the most general summary of the problem for those who just want to skip to the point:
It has no driver (CD for installation or program from Canon website that can be downloaded for installation) for the scanner. The CD that you see in pictures is Windows only. Now that's all fine and dandy if you're operating Windows, BUT if you're buying for any version of Mac as I am, the driver makes the difference in the quality. Someone from Canon customer support told me when we couldn't figure out my photo quality and text resolution problems (with ALL types of scan... photo... auto... document... custom scan... jpg, pdf, quality, EVERYTHING) that the driver allows your machine for the Canon scanner to use the Cannon "ICM" (or IC something) for the image quality. But because there's no driver for Mac, THE SCANNER USES YOUR MAC ICM WITHOUT EVEN TELLING YOU AS MUCH. So nomatter what you do to tinker with the settings, it will never be what it is intended to be. Therefore, for Mac users, the product is actually a DOWNgrade from previous models, and I was referred specifically to the CanoScan 210 to replace it (which will now cost me extra to buy new, when I was looking at several used models for cheaper before).
So that's all you need to know to avoid this one. Hopefully whoever's reading this and was considering this for their Mac, I got to them before it's too late.
Supplemental stuff now:
This is perhaps one of THE most annoying things that can happen with any electronics purchase. Why? Because it's deceptive. Just because something CAN work on a Mac machine, it DOES NOT mean that the quality is going to be as worthwhile or what it was intended to be. I've seen the same things with USB adapters for video game controllers, and now a vastly more important product. UBER-annoying! And you won't even know unless 2 conditions are true:
(1) You have high enough standards for your images and work to care about top quality in the first place, and
(2) You bother to call customer support and get to the bottom of the issue.
And THEN on top of that, you have to hope that you're either protected by the ebay moneyback guarantee or have done so within the 15 day return policy (which thankfully I did).
But the bottom line is that ALL sellers should say this VERY clearly in the description. They should know about this issue just like USB adapter people should know how the quality is affected on a Mac. And if they don't know and state it, then you're just waiting for things to go wrong and to find out way too late.
It's probably not QUITE fair to rate this any less than 3 stars or answer "no" to the setup, resolution, and accuracy questions here, but I figure that if I don't, who will? Until Canon makes it clear that Mac is off-limits despite being functionally operable on those systems, their product deserves some extra negatives. So if you're a Mac user like me and happen to have stumbled across this product like I have thinking it would be fully functional when it doesn't, DO NOT hold back just because it can work fine for another operating system. Canon and sellers alike will only be more explicit about the functionality when enough people complain. So despite the fact that the item should get all 5 stars and a yes on everything in its ideal state, it's not like that for our part of the population that has and depends on Macs. No breaks for them.
Verified purchase: YesCondition: New