As a newbie to 3D modeling/sculpting, after I purchased Cinema 4D Studio (R20), I wanted to supplement it with a dedicated 3D sculpting application, which lead me to 3D-Coat and ZBrush. After assessing both of the said applications through their respective demo periods, I ultimately enjoyed using 3D-Coat far more than ZBrush, and decided to purchase it. ZBrush was not intuitive to me at all. Furthermore, I also appreciated all of the additional tools 3D-Coat provided beyond sculpting, which is now more important because I plan to remove Substance Painter/Designer from my personal 3D pipeline as a result of Adobe's acquisition of Allegorithmic.
With that said, I might give ZBrush 2019 a try in the near future. Due to its abnormal pricing model and popularity in the 3D industry, it is a low-risk investment in the long-run. Nevertheless, I still see myself continuing to primarily use 3D-Coat for sculpting. It just works so well for my needs at this time, and has been a wonderful platform for my learning development.