What do you like best?
ArcGIS Pro is a superior product to ArcMap when it comes to map design. It is also easy for new users to learn how to use, though those of us who have used ArcMap for years took a little longer to adjust to the new framework. It's also more adaptable for tasks like making templates and similar maps but with different data.
What do you dislike?
It is very resource intensive and too slow in our virtual environment. So slow in fact that we cannot use it there. This is a shame because the GIS group at my workplace wants to adopt Pro because it is the future of ESRI desktop and we don't want to fall behind the industry. We also choose to edit in ArcMap over Pro because the former is much faster than the latter.
Recommendations to others considering the product:
Try it, but know the requirements before doing so. And have a back-up plan during implementation.
What problems are you solving with the product? What benefits have you realized?
Problems - very resource intensive, too slow in virtual environment, still slow on physical desktop
Benefits - Better map design, easier to set up shared projects, more logical structure for how projects are organized, more modern-looking in general and easier to teach to new users than ArcMap.