Procedural terrain generation vs Multiple terrain assets

I'm building an adventure game and was wondering if it would be better to use a procedural terrain generation script, or to just create the terrain by hand. My current procedural terrain script is alright, but it's Incredibly complex (I don't understand half of it) and while it doesn't look terrible, it's not the highest quality. Are there any good scripts/tools/tutorials to create nice terrain.

p.s. if needed i can post my code & link to tutorial

 

I like Alex Dracott and Ari Danesh tutorials on making heightmaps! For your game, it depends how art-directable you need the terrain to be. Personally, I like to make things by hand at first and once I notice a pattern (if ever) start thinking about making it procedural.

 

I'd go with custom terrain assets. If you have some money to spend, you should check out World Creator

Unity versions of it also exists on the Asset Store (see World Creator Standard & World Creator Pro), but they are not as feature-rich as the Standalone versions