It's a matter of ongoing surprise to see many scientist-engineers in my niche, in the USAF-sphere, who are jumping from Matlab to Julia, leapfrogging Python. Kudos to them.
Julia is pretty cool, I made a point to experiment with it a bit last year. What we work on is pretty heavily object-oriented, and at the time it seemed to me that the types system seemed a bit too awkward to use to for our purposes at the time. I'll probably look at it again this year (probably through Jupyter/IPython notebook)