As others have noted, a lot of their efforts have been going into developing new (or new forks of existing) tools and applications, with much attention to imple

As others have noted, a lot of their efforts have been going into developing new (or new forks of existing) tools and applications, with much attention to implementing a simple "do one thing and do it right" solution for each item, and making all of them cohesive. You can still quite easily replace their file browser, their dock, their terminal, etc. with ones you prefer quite easily (this is becoming difficult within Unity), but I've found myself not wanting to. The OS is very cohesive and kind of a joy to use, I've found.