Over the past few days, on and off whilst tinkering with other things, I have been building levels with the Terrain Editor in Unreal.
It’s fun. Using the tool is tactile, responsive and immediate. If given the choice of building in BSP or throwing something together in terrain, then terrain wins every time. It has a very shallow learning curve which suits me perfectly, and has allowed me to throw together some cool looking terrains after only a few hours practice. The following images chart my learning.