so can't comment, but I do know the Canon, and it's an excellent performer. Cost of operation? Virtually nothing - scanners don't use enough powewr to keep a mouse warm, and there are obvioulsy no consumables to worry about.
Ease of use - couldn't be easier.
Quality output - certainly
Initial cost - that's a subjective judgment really. Most scanners are pretty good value for money nowadays, especially when you think about what they do.