It is very robust and has great compatibility. All you have to do is install, and without you having to get off the browser, you can begin using the web browser. In Chrome, there is no such thing as a reboot for completing the installation. In some browsers, when you install a particular extension or any other service than to make it run on the browser, you often need to reboot the whole browser or even sometimes the entire system.
Personally, we use extensions like Pocket to save links for offline reading, Alexa to check Alexa rank, Grammarly for writing, AdBlock Plus to block pop-ups/ads, Google Hangouts for chat, and many more.