What do you like best?
It's a great browser and suits all of my needs. It has good search features, a great bookmark toolbar and very rarely crashes. Its quality matches that of other Apple created software. I also really like the interoperability that it allows with my other Apple products, such as sharing a link to a contact through Mail, iMessage, AirDrop, or to add a hyperlink to my Notes app. If you are a user of multiple Apple products, Safari can help you synchronize all of them together.
What do you dislike?
I've noticed that I use Safari less than I once did. 5 years ago, I used Safari almost exclusively, but now I use it as much if not less than Google Chrome. This is in part due to the fact that my graduate school coursework was not compatible with Safari, and also the interoperability available in Chrome with other Google products, particularly Gmail.
Recommendations to others considering the product
Safari works best for people who own and frequently use other Apple products (iPhone, iPad, etc.) As with most Apple products, there is a lot of opportunity for interaction among the devices, so that can really be a helpful tool. It works just as well, if not better than many browsers. I would say that Google Chrome is its biggest competition as far as usability and ability to streamline tasks.
What business problems are you solving with the product? What benefits have you realized?
I use Safari often at work to do internet research that supplements my own research in the library. It allows me to access library catalogs, do advanced searches in my own university's digital collections, and make discoveries that benefit the finding aids and other documents I create for the users of our library. It definitely meets my expectations for work related projects.
The bookmarks tool also allows me to really customize my Internet experience by giving me quick access to webpages I access frequently, both for personal and professional use.