Jesus, maybe you were not able to read a clojure book befor you started. Its amazingly simple to explain how to write thread safe code with clojure, and pretty easy to add concurrency safly.

There are 3 concepts that are all diffrent, and a couple yours ago core.async was added. All in all thats a amazingly simple and powerful combination. Everybody I have heard is pretty happy with these tools. What is your problem?