I've been fairly <strike>unimpressed</strike> disappointed by the Gnome project. I began with Gnome, and found it fairly nice, but over the years, it really started pissing me off as the updates rolled out.
A few years back, I switched to KDE, and haven't looked back. Now KDE hasn't had the best track record either, but it definitely hasn't pissed me off nearly as much as Gnome.
The most recent Gnome is not going to grace my desktop, and here's why...
While Ubuntu and Kubuntu went from networking in v6 through v8 to notworking in subsequent versions (each release seemed to get worse than before, with more problems that I needed to figure out how to fix), Microsoft was busy working on their trashiest OS yet - Windows Vista, and subsequently on their greatest OS yet - Windows 7.
I finally had to give up on Linux because I was spending more time fixing stuff just so I could surf the net. The music software available was also far too limiting (and non-functional), and the disaster which is Pulseaudio meant I couldn't even produce music without hearing pops, clicks, and noise.
Now I'm with Windows 7, and it works great. It doesn't crash on me. Networking just works. I don't get pops and clicks while composing music. I don't have to try and fix anything, because everything just works.
I still keep Linux around on a junked laptop so I can keep up with the technology, but I have barely used it in the last 6 months. Linux distros and developers need to wake up and smell the coffee. Their user experience was starting to get really good, then plummeted. Rather than take their competitor's shortcomings and build and capitalize on their weakness, companies like Canonical, and coders turned the distro's into epic failures, and allowed Windows 7 to shine. Just because it (Linux) is free, doesn't mean it's good. It was really good, and then it started sucking in a big way.
Productivity means getting work done. Linux held me back. But I'm back on track now.