[Mr_T_]

Unity shares a lot of core infrastructure with Gnome. If Gnome has problems, Unity+Ubuntu will have problems as well. And Unity has the same bus factor and even less community developers or developers from other companies: if Canonical is hit by a bus (which is not entirely unlikely if it doesn't become profitable) the project is doomed.

[slurgfest]

The lion's share of complaints about Unity and Gnome have always been from users staring at pixels, not complaints about the underlying libraries. Even this post is about manpower, not the libraries being unusable.