Honestly, I tried Ubuntu countless times, recommended it to a bunch of people, used it on some computers for a while, but they should really concentrate in getting the bugs worked out. Unfortunately, I am afraid, I will not use Ubuntu anywhere myself anymore. Don't take it wrong, I like the fact they want to put the linux desktop where it should be, but each release breaks more often that the former one, and I really don't understand why. As sad as I am to say that, each Ubuntu release looks more and more broken, in fact it even reminds me of Windows.
I will stick with Debian on my desktops/laptops, I am currently using testing/wheezy, which is way more stable than any current Ubuntu, even the LTS releases...
And yes, I know I will be flamed to give my opinion and I am repeating myself, but Ubuntu should really work out bugs instead of pushing eye candy.