It's awesome. It's even better when you pay the small subscription fee, and if you want to use your own domains and more. It's not just a Browser extension, it's also a mobile app. I have used it for around 6 months now with a yearly subscription. There are tons of things you can do with your account. It's being actively developed, so you can suggest ideas and give feedback straight to the developers. Pay for the subscription, help keep this great open source project going! Highly recommended!