What do you like best?
For a business looking for managed hosting there's few choices that can really compare as far as the variance and stability provided by CenturyLink. Robust service, redundancy, 24/7 monitoring, and easy to use web portal.
What do you dislike?
There are some other services that provide a wider range of products within the hosted environment, while I personally do not use some of these services I could certainly understand end users need and desire of these products.
Recommendations to others considering the product
If reliability and support are important to your hosting needs, it's most certainly a solution to consider.
What business problems are you solving with the product? What benefits have you realized?
Redundancy of hosted environment, and the modern hardware within the data center have proven to be of great value, businesses of any size can benefit from this solution.