General consensus on Hero Engine:
+Great tools for content creation. Multiple people in different locations can simultaneously edit stuff live. Lots of good tech integrated.
+Covers literally everything; backend, frontend, client, world building, scripting, shaders, etc.
-The backend is apparently GARBAGE, the client also hasn't gotten many kind words.
-The above is really important.
This stuff from their website is even funnier. Emphasis added by me. Explains a LOT.
http://www.heroengine.com/2011/11/heroengine-meets-starwars/
lol, whatever we'll fix it when we got it! The Million Man Hour Myth itself is a myth!