I'm sure cloning isn't the Microsoft approved method, but will it actually give issues in the real world? Sysprepped images take additional time to set up and deploy (Setup is configuring your computer for first use....). The documentation on sysprep states how it genericises certain attributes of the installation which cloning doesn't do. In a domain environment I'm sure cloning causes a trust issue with the machine that was cloned, but once you rejoin the domain under your new name everything is fine.
I've deployed cloned machines before and had no apparent issues with them. Just wondering if this is "bad" or not