First Linux OS on my computer was RedHat 6.x. I was impressed with it because it was something diffrent. And when RH switched to 'commercial roads' i was very dissapointed with Fedora, especially Core 1 and 2. It was very buggy so i have switched to other distributions because of too poor quality.
Fedora Core 6 is great system, just like SUSE or uBuntu. I just hope that Fedora team will continue with development.