Following are Meteor’s biggest pros:

• It provides full stack reactivity, allowing your UI to seamlessly reflect the true state of the world with minimal development effort. With JavaScript on the frontend as well as the backend, it allows us to develop apps faster with less code and effort.
• Simplified for Developers: Meteor comes integrated with MongoDB support and its client side (frontend) can easily integrate with frameworks like React, Angular and Blaze. It also means you can easily swap from one technology to another.
• Real-time applications at the core: Meteor has the distinctive feature of producing real-time apps out of the box. All of the application’s layers, from database to template, update automatically due to user actions/server-side data updates. This means there is no need to refresh the page to see updates.
• Meteor for iOS and Android apps: Meteor comes out of the box with Cordova which makes it simple to turn your web app into cross-platform app. Cordova is a platform to build native smartphone applications using HTML, CSS and JavaScript. Hence, you do not have to write different code as the web app code will also run on mobile when converted with Cordova.
• It’s well-supported by the MDG (Meteor Development Group) team and has a growing community of developers (referred to as “Meteorites”.) Thus, there is no risk in saying that Meteor is one of the important technologies of the future of web/app development.