Linux is a very powerful operating system, far more so than any version of Windows available. But it still has quite some ways to go in terms of ease of use. You'll have to devote far more than 1 day to Linux before you will be comfortable with it -- mainly due to the fact that it's so different from any Microsoft operating system, but also partly because it can still sometimes be difficult to set up properly. I do think it's worth the time, to become comfortable with Linux -- one of the few truely reliable PC operating systems available. The only Microsoft creation that even comes close as far as stability is concerned is Windows 2000.
Since I've been using Linux off-and-on since 1994, I sometimes forget that not everyone can get a Linux install functioning easily or quickly...