Hi
If you compare unity to ue, im not sure but unity is free for use since 2005 but ue4 2015?
Ue4 have smaller community but imo fast-growing, i think it will be ± balamced in t years…
As ue4 complexity, i dont know because i used unity only for 20 minutes, but ue4 BP scripting system is awesome, i made playable game entirely with BPs including multiplayer…
I also think ue4 will be more user friendly in near future; if epic hire 100+ more ppl for engine+tuts+docs etc… but it needs a little time.
Imo whats one of the best advantages ue4 over unity is that Epic developing games by themselves but unity no(?). You can see huge engine improvements after released game, for example paragon…
Sorry for wall of text without any good info, but i wish u with ue4, i think this engine is worth of time.