Here are a few Positives and Negatives of Linux as seen by me....
1. It's Free and open source so no piracy.
2. Installation is easy, You just need to have some patience to read the instructions.
3. There are NO Viruses, so there is NO need to install Antivirus so NO TENSION (At least when plugging my friends Pen Drive).
4. You can do almost anything with Linux which Windows can do.
5. Almost all drivers come in the Installation CD, So no need to find the MB Drivers CD.. ;)
6. You can find almost all the equivalent windows software free of cost for Linux.
7. Open Office is also Included in the CD.
1. The GUI is not completely matured, You have a Kind of unfinished look for GUI in some places.
2. You get all free software, But installing them can be a bit of pain.
3. There are Almost NO BIG Game titles for Linux... :(
4. You at least need to be a small time geek to be able to use Terminal.
5. Some settings can confuse you if you just migrated from Windows.
6. Some of the devices will never work with Linux as manufacturer does not provide driver support for Linux... :(
7. Many of the Applications for Linux are yet to mature... :(
*I Am a Windows XP + Linux+OS X User at Home and a OS X user at Office, The above points tell what I felt about Linux OS... :)