We've evaluated Juniper as well. 

We gave up looking at this solution either due to the fact that the scope of features was not matching the requirements or the pricing model was not matching what we could do as a SaaS service operator.

Compared to Fortinet or Cisco, VMware is quite easy to set up, and the management dashboard is intuitive. 

I have evaluated Zscaler and Versa.

I have evaluated Cisco SD-WAN and Fortinet SD-WAN. There is a need for more features in these solutions.

VeloCloud performs as well as the Cisco SD-WAN but it is cheaper in price.

We have looked at some competitors.