ACF has a handy feature for creating custom blocks. There are, of course, pros and cons. Experience with the feature is limited. I will add to this page as more is discovered.
Pros
- Low learning curve
- Speed
- Familiar interface and functionality
Cons
- Limited UI features and access to native Block modules
- Editor style issue. See ACF Button page.
- ACF Field Group must be imported before block can be used. This creates a dependency.