Recommendations to others considering Microsoft Entra ID:
Forget what you know about Active Directory Administration (or don't, because it can still be administered that way) but Azure Active Directory can offer a cloud first federated identity that your internal users can leverage across the network and the web. Also consider looking into the B2C preview (as of 06-15-16) and the graph api - these are all connected and have great synergy beyond just IDaaS. Review collected by and hosted on G2.com.
What problems is Microsoft Entra ID solving and how is that benefiting you?
The problem is twofold; 1. SSO integrated into all internal applications, for internal users (this is using Azure B2B and works great). 2. Since the announcement of Azure B2C, we've had high hopes of leveraging that to provide a similar experience to our external customers using external applications (this is in preview, but looks very promising.) Review collected by and hosted on G2.com.