Hey All,
I’m building Silverwing in UE4 and I simply love working in this engine! Take a look at our gameplay trailer:
https://youtube.com/watch?v=6PGK1Xi950Y
As the video mentions, we are doing a Kickstarter in February (pre-launch page here) and several of the reward tiers will feature UE4 tutorials and game dev sessions to help teach other game devs tips and tricks and how to use the engine. In fact, we would love to collaborate with Epic on the project directly so if anyone reads this post and knows who we could talk to, please reach out! 
Thanks!