As a language it is a work of wonder and it focused and refines thinking about programming. Learning it will make you a better programmer in whatever language or paradigm you more commonly use.

As a tool for building things it varies. I only know about the web, and on the web it's probably best as a secondary language to do heavy lifting as a service rather that the backbone of a SaaS, where Django or Rails will get you where you want to be faster. Trying to do fairly common web stuff in Clojure is a lot more work and happens at a much lower level of abstraction, even if you use curated selections of libraries like Luminus. The focus on libraries over frameworks is enticing for some engineers who want to spend a long time building reliable and totalized systems, but for quickly building out features it leaves a lot to be desired. The ecosystem also assumes you are going to make an SPA in ClojureScript. (That said, Fulcro is fascinating if you are committed to the SPA way of doing things; the way it manages data flow seems unique, at least to me.)