Unity installed on Fedora 17 (video)
Criticism is probably one of the most important factors in software development, especially in open-source zones and in places (like Ubuntu) where exposing step-by-step the development steps (branches pushed on launchpad, official announcements, official mailing list, etc) is a common attitude.
Nevertheless, there is sometimes a psychological gap between a piece of software's road and immediate feedback, coming from users that, at a first glance, tend to forget that software is to be developed and properly organized/strengthened/polished in time, across multiple Ubuntu development cycles.
In the described behavior fits perfectly Unity, Ubuntu's default shell, that gradually conquered user's hearts, being progressively strengthened, enriched, fancified and adapted to a modern, up-to-date, fast desktop workflow, development process "backed" by development work, user feedback, user testing, etc.
Probably generated by both user feedback and its maturity, Unity has been recently ported to Fedora 17, featuring relatively proper useful components, such as usable launcher (with tooltips and quicklists), usable Dash (including lenses,
Recent Files, launching applications by clicking on them, etc), custom Fedora logo on the Unity launcher, as seen in the bellow clip.