YMMV, my opinion etc etc: For me its a huge advantage, massive ecosystem of existing libraries to fill any gaps in the clojure ecosystem and an extremely fast

YMMV, my opinion etc etc: For me its a huge advantage, massive ecosystem of existing libraries to fill any gaps in the clojure ecosystem and an extremely fast garbage collector + JIT. Stack traces are annoying though, but fixing those is waayyyy easier than replicating the JVMs advantages. Fast, bulletproof GC is beyond essential when using persistent data structures.