Their multi-tenancy and routing functionalities are both great.

It is stable and reliable.

The solution can scale.

Technical support has been fine.

Nuage Networks is easy to use.

It has good reporting and analytics, that most people can understand without too much difficulty. 

The features are what I believe to be one of its strengths. Cisco frequently has 800 features, but customers only use ten of them, and Nuage has fifty for example that can all be easily used.

One of the many benefits of Nuage Networks is VoIP. It will maintain a call session even if you lose an uplink.

• It's stable and secure (built around VXLAN, BGP, and the legendary ALU 7750 router).
• Single platform for both SDDC and SD-WAN (enabling end-to-end overlay from VM/container to the vCPE in the branch under a single policy).
• Layer 2 overlay
• Service chaining
• Application-aware routing
• Version 6.0 now is expected by mid of this year which reflects a maturity I've never experienced with any other network virtualization system. (Version 6.0  Is released on July)
• New Portal Version 6.0 was also released on July
• Open platform (open API, any hypervisor, over x86 computer, and any network provider).
• Microsegmentation with performance and scale.

One of the most valuable features of this solution is network management. The customer is able to manage their network from home or we can also manage the whole customer network. Additionally, there are easy access, configuration, and rules. The solution can also be used as an easy way to manage VPN networks for some customers.