My god UE4 is fantastic. The level of thought that's gone into the system is phenomenal.
After having played around with it for a short while and done some prototyping for our current project, I've decided to switch my side project over from Unity.
One of the main reasons for this, apart from how easy it is to use, is that we now have an animator on board! Very exciting, and UE4 has far superior animation systems.
I'll start posting videos of the game very soon - I've re-worked the core system to support some pretty cool stuff in our little dynamic, procedural world which I'm looking forward to unveiling!