Just to ensure that complaints are not the only opinions developers like you hear, let me tell you that I use Gnome Shell everyday, and I love it. I migrated a lot of the people in our office (a small Actuarial firm w. ~12 people) to it and everyone likes it.
Same, I'm using it right now on my work laptop and I wouldn't dream of using another desktop environment. It's fast, fluid, and getting more functional with each release.
