Mike Hartington highlights the advantages of deploying an Ionic React Progressive Web App (PWA) to Vercel, emphasizing its fast and scalable hosting solutions for static sites, JAMstack-based web apps, and serverless functions. Vercel's simple integration with GitHub allows for quick deployment, where users can connect an existing app, configure build commands, and deploy instantly. The process involves selecting a project from GitHub, adjusting the output directory and development command to suit the framework used, and deploying the app, which is assigned a .now.sh domain by default. Hartington notes Vercel's compelling service due to its ease of use, speed, and seamless integration with popular frameworks, making it a top choice for hosting PWAs. He encourages exploring Vercel's documentation for more possibilities and acknowledges the service's potential as a comprehensive solution for future applications.