When users first encounter Ubuntu: six showstoppers | Canonical

These six issues – the extent of file compatibility, the lack of feedback on system behaviours, the use of jargon, challenges to the ability to use flash, access to applications in the software centre, and installing a printer – are central to whether Ubuntu will be taken up by ‘ordinary’ users. For many, if they’re unclear about these things, they’ll simply be unable to use Ubuntu to accomplish their basic goals: to communicate and exchange documents, to feel in control, to use the internet fully and to access new software.