What do you like best?
Seamless integration with most of the apple devices that could use, Icloud pioneer several of the most popular uses of cloud service.
Intuitive contacts, notes, reminders & calendar syncing; Iphone and Mac products easy finder, easy backups for Apple devices, storages for pictures or other media.
Small amount of space provided for free accounts, but bigger plans available for purchase.
Integration with Apple's Office software package and availability on mostly every computer, tablet or cell phone
What do you dislike?
Poor integration with non Apple products, atrocious space provided with the free version; has had security concerns in the past.
Atrocious compatibility with non apple filetypes.
Recommendations to others considering the product
Consider purchasing additional storage, verify the product integrations with the different products you intend to use, don't store your nude or very private pictures!
What business problems are you solving with the product? What benefits have you realized?
Contacts, calendars, events, reminders & notes storage and sync between multiple devices.
Backups created for cell phones in between upgrades or as precausion.