Out of interest, why not a "Web ui"? Do you use Qt for a desktop client or an app? I'm writing a sort of personal "life tracker/history application" and decided to go with a Web UI (with an offline manifest) because I didn't want to maintain both a mobile and desktop app.
Personally I can't stand html and javascript. In addition, writing Qt style C++ is really fun and productive.
As a bonus, our software works in both Windows and Linux (and probably mac). Personal finance work is not so nice to do on mobile so the app route would not suit us either.
Not saying that other solutions would not be better, but it all comes down to what one prefer to use :)
Electron is a good solution if you need to access certain features of a desktop application (e.g. access to files), but still want something that is easily web based.
I'm going to use it to build an iPhoto replacement, what I've got so far is web based but I'll package it up with Electron.
