What do you like best?
I like how easy Juju makes deploying services on most any cloud configuration. It also simplifies the relational setup between said services. I'm quite impressed with how simple it is to work with. I'm still in awe of how simple it was to set up MaaS and Juju
What do you dislike?
There is not a single thing I dislike about Juju...except maybe the potential loss of specialized, technical understanding that may arise out of it making all the things so simple!
Recommendations to others considering the product
Juju makes implementing cloud services easy and efficient. It is also good to understand the underlying cloud infrastructure and the technologies of which it is composed.
What business problems are you solving with the product? What benefits have you realized?
I use a MaaS setup for my business LAN, and Juju has made it easy for me to deploy services there. Not to mention the various other cloud environments not associated with the aforementioned LAN.