SDN like GL.iNet goodcloud/QNAP quwan?

I have been studying how to quickly and easily set up a Multiple Site-to-Site VPN.
and I found goodcloud and quwan.
I haven't started using the service yet, because the products (GL.iNet MV1000) I bought haven't arrived yet.

However, I am very curious about this service, whether it is really as the manufacturer said, once the product is registered online, Site to Site VPM can be set up automatically.

I wonder if anyone has used these services? is it really good to work ?
I'm also curious if there is a similar service in the OpenWrt ?