Amazon EFS is a good choice
What do you like best?
Implementation is easy if you understand the AWS environment. As a user of AWS having this work by design with everything else is a huge plus.
What do you dislike?
You need a working understand of AWS to implement EFS. It is designed to be used along-side other AWS products like EC2.
Recommendations to others considering the product:
When considering AWS services, or really any cloud based platform, it is important to make sure that you understand how to implement the product correctly. This usually requires an understanding of not only a service like EFS but the services around it. There are many resources online to be able to learn how to effectively implement cloud services.
What problems are you solving with the product? What benefits have you realized?
As more and more workloads have moved to the cloud it's become easier to expand storage, memory, processor power and other resources as needed. EFS will allow storage containers up to 48TB. This makes it very easy to adjust capacity as needed.