What seems to be the most valuable from the customer side is the ease of operation, and the overall experience they have.

It's great that the total deployment can happen completely remotely.

It's an easy solution for customers to pick up and use from day one. 

The publishing aspect of the solution is great. Different users can publish applications based on requests, which they couldn't previously do via their VPN. It's easy for them to pick up and publish and then give rights to whomever they choose.