Because we are using a single code base, it means we can use this for both web applications and desktop applications.
With web technologies, you are open to multiple technologies that provide great User Interface (UI) & User Experience (UX) to all your users with great comfort.
You will save a lot of development time and money because for the tech stack we use, there are a lot of developers who can do it for less and achieve good results.
ElectronJS thrives in this aspect. If proper care is taken while developing (load only what you need), ElectronJS can show some great gains in the terms of performance when compared to native applications. ElectronJS saves a lot of time and provides more options to play-with or develop by having a single code base for all the major platforms. These are the major problems when we deal with native development of applications, which are all effectively solved by ElectronJS.
Here are some famous companies that trusted Electron in creating their apps.