There were things I did not like but was too new to know how to change. Easy things not having anything to do with functionality. Color scheme, although I appreciate the symbolic relevance. Default fonts. Easy enough to "fix" but I was more interested in whether I could do all the various things I use the computer for.
When I tried Mint, which is basically a customized variant of Ubuntu, the first thing that caught me was the "pretty." and possibly because of experimenting with Ubuntu first coupled with the way the desktop interface was configured, "it just worked." I had built a new box to replace the much older HP that I had been using, after my previous machine had died, and had been wavering between buying W7 or goining through a fresh XP install using the SP1 CD. Neither seemed desirable, And after a period of using one and then the other, I got the one Windows-only progam I needed working perfectly, a few proprietary programs that had Linux versions going, and found some favorites among the great number of Linux programs that are replacements, often friendlier, for other programs I had been using.
The designers of Mint had the goal of making Mint immediately usable by those only familiar with using Windows. I'd guess in 90-95% of the cases that goal is met, although I've seen that there can be challenges related to particular pieces of hardware that need some special configuration work. The forums seem pretty good at providing the needed help. Every hardware manufacturer has to be sure their stuff is m$ compatible and providing any additional software in might need to work; some, many actually, do this for Linux, but not all.
So, after a while using m$ OS seemed pointless. No gain, more pain.
But at the same time something else was happening. I actually began to really like the way Mint worked. Little things at first -- this is a bit different but it is better, more empowering to the user and easier, and then bigger things like the power and ease of using multiple workspaces and the Compiz eye-candy rotating cube to access them.
For the first time since I bought the good-used-car-priced Amiga 1000 (powerful mousing and cli combined, a never before even imagined graphics capability, talking, music, magic), I found myself working in an OS that was really awesome and fully empowering. Using WinDulls I felt like I was on the defensive, trying avoid trouble and follow the herd. With Linux, all versions, using which ever one gets you up the first step or three, the user is put in full control over everything. Learning what is needed to get control over what one one wants can be fairly easy or complex, but out of the box, Linux just feels like something that belongs to and is at the service of the user, rather than the reverse.
Every variant of Linux has the same underlying power and potential. Each individual who is curious enough will be able to try many distros (
http://en.wikipedia.org/wiki/Linux_distros ). Ubuntu worked for you, Mint for me, and many others for others. All this to say to any who read it, give a LiveCD or 3-7 a few tries. Find one that looks friendly and maybe try the dual boot install and play some more. There's a good chance you might find yourself having more fun than problems.
(edit one typo, although there may be more)