Respectfully, I disagree. I've been using GNOME since at least 1.2 or 1.4. I've also used Unity in recent years simply because that was the easiest thing to use when using Ubuntu on one of the systems I have it on. However, it took very little effort for me to start using GNOME 3 in its latest incarnation as it is fairly similar to the Unity interface Ubuntu ships in many respects.