Hi, friend! You didn't post any link for this product so I have to make a search even though a know a thing or two about this framework. Here's my personal description about it:

Pros

• It's open-source which allow you to make contributions to its community.
• It's based on Javascript and Typescript. This is great because if you're familiar with the language it will make u easier to understand who the workflow is.
• You can build progressive web apps web apps (PWA) no native apps based on a single OS like Android or Apple.
• It supports the Integration of Vue.JS and Angular.JS.
• It have native components for the UI and improve the UX performance.

Cons:

• The abstaction for the cross-platform deal is kinda mess.
• As this is in its early state of building, for now it's better to keep with other PWA Languages.

In the future, might be a greter option as long its comunnity keep growing and the issues that might have for this time.