I actually like them, but agree about the loss of jobs. What I can't stand is the canned voice telling me to put the item in the bag one second after I've scanned it. I don't ever have many items, so don't need help bagging.
What I don't like is the impersonal side of them. The cashiers here are mostly friendly and helpful. At Hannaford, there is no self-scan, and their cashiers and baggers are extremely polite, courteous and friendly. At that store, I'd never use self-scan.
Home Depot - they're much quicker than the cashiers. Sometimes it's hard to find a cashier, and at WalMart, you can never find a sales associate to help you out.However, at WalMart, there is always a man in the garden dept. who will carry heavy bags to your car; at Home Depot, never.