Kit ops Free version.   (There is also a paid Plugin I might Review)    My Artstation Art has some images of these props.

I created some props using the kit ops free version.  Initially I created them in about 20min and an hour.  Tweaking the textures and lighting took awhile longer.

 

 

Beginner

He has a beginner series with his free Version.

 

 

 

Intermediate

Workflow of using Kit ops is very fun.

Advanced

Kit ops would be great to create some interesting greeblies on a spaceship.  The author of Kit-ops shows you how in this Tutorial. He also talks about Micro Displacement which is an Awesome technique too.