Highly useful addon. It's smart and practical, and provides you with the tools to use it smoothly.

I've used it for a good long time now, and I haven't had any issues at all with it.

It doesn't take up a lot of screen space, which is a boon in my book. However, that means it's not an in-your-face, shiny and fluffy kind of addon. It's a tool. It does what it says on the tin, does it well, and lets you get on with your browsing.