What do you like best?
With CloudFlare i can monitoring my website traffic and see how many unique visitors i have every 24 hours, where they are from and even with they search for us on any search engine.
Through this information about my website you can adapt my content to atract more users and more customers. CloudFlare guarantee that my site won't slow down due to trafict, because the offers a service of Cached Bandwidth that allows my to saved bandwidth and to do less request to my server and slow it down
What do you dislike?
The information presented is only of the pass 24 hour for more close to "real time" you must buy the pro and enterprise plans. In the free version i can only have the information about the last month (bandwidth use, requests, unique visitors, etc) but i can save it to file and download, maybe there's a option in the pay version but i don't know.
Recommendations to others considering the product
try the free version first, that way you now that you want and how much you can spend on their services.
What business problems are you solving with the product? What benefits have you realized?
The grow of my website depends in how well i do to attract new customers, users, so i use the information about their location, how many unique users i have and how many of those users return to ajust my content and keep the visits up based on the performance (24hrs, 1 week or 1 month)