If they will be like the kiosks of Delta Air Lines, I welcome them as long as personal service is not sacrificed when needed (such as when a problem arises).
It literally takes me less than one minute to check in on Delta Air Lines using a kiosk, and I have been able to upgrade at the kiosk when it offered it, as well as change my seat. There is even an option to change my flight to another flight, if necessary!
Count me in as liking this good idea, if it is done correctly.