Just got my 750S and it’s a nice bit of hardware. I like the new UI in comparison to the AR300M (which I have as well).
Here are my comment on the UI:
The password fields have “onpaste=return false”. This prevent people from generating a strong random password in a password manager and pasting it in. I don’t see the point of prevent pasting. Especially as it’s trivial to open the dev tools in the browser and delete that line.
There doesn’t seem to be a way to set the Wifi encryption. I found I could use the advanced Lede UI to change it from WPA/WPA2 mixed, but this really should be exposed in the main UI.
Thanks again for great product!