I recently tried Red Hat Linux 6.1.
Linux is NOT my kind of operating system.
After spending about 4 hours (and many reboots) trying to get the Installer
to BEGIN copying files, it finally started installing files from the CD.
My response to this was, 'This better be REALLY cool.'

After installing it i was greeted by a dos-style login prompt asking for
a username and password. Remembering i hadn't set up any usernames and passwords
i got slightly upset. I called a friend and he told me how to start the Linux
GUI. Now came the fun part.
My response to this was, 'Ooh. A DOS clone.'

When I booted up the GUI I was pretty happy to find a fully functional OS
and I started using it. I was pleased to see how much software came with
it and was enjoying myself until I tried to set up an internet connection.
My response to this was, 'Hey, this isn't too bad after all.'

When I tried to set up an internet connection i was greeted by many crashes
and failures to work. I then decided to try the ultimately popular image
editor, 'GIMP'. I opened it up and really liked the features. I then noticed
how little space 640x480 was and decided to crank it up to my windows resolution,
1024x768. Unfortunately for me, Linux may have had drivers for my video card,
but it didn't support any resolutions except 640x480. And I couldn't open
any files off my hard disk, either. So I was basically screwed and had no
way to get new apps. Can you say, 'Uninstall'?
My response to this was, 'Darn. This would have been cool if it worked.'

When i tried to uninstall linux i discovered that there was no real 'Uninstall'
feature. So i deleted the partitions and discovered that its bootloader had
attached itself to my Windows drive, and would automatically freeze my system
by trying to load its default OS, the now non-existent linux. After about
6 hours i had a copy of PartitionMagic and had removed all linux partitons
from my system and recreated my master boot record.
My response to this was, 'LINUX SUCKS!'

I still feel that way today.

I recommend BeOS, which is much easier to install and actually more stable.