If you've seen my Ubuntu-related posts on Spiceworks or maybe even here or basically anywhere, I've been highly critical of Ubuntu for effectively crippling new comers into being dependent on and overusing sudo, and not knowing how to actually download, compile, and install things instead of using apt-get. I've seen in the real world how this makes people think they know Linux/Unix, but then suddenly they can't do anything at all except type sudo and apt-get over and over and not even understand why there's no pico or nano (welcome to the absolute hell that is vi).
I've used Ubuntu on servers before, in fact we used it in staging for a while even though in production we mostly use FreeBSD. We also use FreeBSD (or sometimes PC BSD) for desktops, but never had installed Ubuntu on them, so my perspective of Ubuntu was essentially always as a server OS.
Anyway, so I started to use it on my other machine and it's not bad. I thought the install was very easy, but even Mandrake had an easy installer 14 years ago, and overall from a regular user perspective it's pretty great. I think it would work well for regular people, and since regular people don't really need to know about sudo or apt-get, it's fine.
I still prefer FreeBSD though. Also, I never liked Debian, which is Deb-Ian, not Deeb-Ian, by the way, because it's a combination of the names Debra and Ian, and I've yet to meet anyone named Deebra. Then again, I still hear IT people say Ligh-nix for Linux.
I was a Slackware user from the mid-90s, and also I used SuSe (pronounced Zoo-zuh for those who don't know German pronunciation), back when the interface was almost only in German (I remember it being the only distro that worked on my HP N3402 Laptop). I primarily switched to FreeBSD in 2001.