I use it for a desktop file transfer app [0]. I chose Rust because my primary language is Python and I just wanted to learn something new and really different for this project. Go would have been easier, but Rust just feels bullet proof. It's so strict. If it compiles, it works! It's been a very interesting journey.
I've built a p2p file transfer program [0]. All my development experience had been in Python, but I really wanted to try a statically typed, low level language, and decided to give rust a try.
It was hard to get going, and I still only know basics, but everything just works! Typing, borrow checker, the matched results, all of that makes code bullet proof.
Pros:
It is as light weight as it claims (at least when I did a basic test I was more than happy).
Seamless deployment, no setup or dependencies or anything. For instance I'm using Rust and it was the only front end that _just worked_ when I started a year or 2 ago.
The creator is very active and very helpful on the forums. He will answer your questions and give you the solution you need, but also give you a more proper solution, if applicable.
It appears cross platform support _just works_ as well, but I haven't tried yet.
It's nice that it's HTML, CSS, and JS so you can share knowledge among projects.
Cons:
Not as much documentation and help online as you might be used to from larger projects, but the documentation and samples are good enough if you're willing to grep and dig a little.
It doesn't have the same parity as exiting browsers, so some existing web frameworks (like bootstrap) won't work (at least I couldn't get it to work).
No debugger that can step through JS that I can find. But it does have "inspector.exe" which is like a simple Developer Tools from browsers to see the HTML with an active JS interpreter.
Sciter is great. It's similar to Electron but very light on resources. The creator is very active on the forums too. It'd be great to have a GUI/widget toolkit that would look native across all platforms but also work be valid HTML/CSS/JS on current browsers.
It really feels like there is a lot of potential for sciter to take over.