CentOS

39, and have used CentOS for 5 hours. Started with Mandrake 8.1, then moved to Debian because of a tutorial on how to install Enemy Territory in it. Stayed with Debian and its spinoffs for about a decade, now here. Already feels like home.

Ah, RTCW and ET... so many good memories

32 and just started using CentOS 7 so far so good

Above 40 covers a lot of territory... for me I started with CentOS 5, about 6 years ago

About 30 minutes

Jeez, you're young...

My first modem for Internet usage was a 14.4 internal Creatix modem with a few jumpers,
and the motherboard had lots of them
I´m using CentOS for 3 years now, fedora for the last I think around 12 years.

Because I´m getting older, I ´m not so fond of surprises now

51 and 5, both in human years. Unix and OS's with ~bash for about 15.

I am a biologist who had no idea I would get so deep into this muck. Among the many foolish things I've uttered was telling a friend who told me that I should get into computers 25 years ago that I would stick with biology. So, not the sharpest tool in this shed, but still enjoying the ride.

41, and I've been using Centos as my daily driver for about six months.

The reason I switched to Centos is that I reckon it's perfect for web development learning more about Linux.

29
I use CentOS as my work daily driver.
I wrote about its advantages in another topic. My opinion remains the same - I really like it