I adjusted very well.
I have used UDK before Unity, but thought it too difficult and Unity a lot easier. Now, with UE4 and it’s constant improvements, I find it MUCH easier. There are still some things I have to learn in UE4 like the particles system, matinee, etc. I just haven’t found a use for them yet, so I didn’t try to learn it.
To me, I think creating art like materials and audio is the same on both, but it feels more professional on UE. Also, the templates are a godsend when learning how to create genres and it’s corresponding BP/C++ code.