It has a very simple and intuitive interface and it is easy to use. Till now Google Chrome was the best for me (my preference, I can tell that I was a fun), however now I see that Internet Explorer took the right way, and made so that the user have more space to view the page but not Browser's menu, tabs and buttons.
Here is a screenshot of the new Internet Explorer - Version 9.
Click on the image to enlarge:
But hold on, the new interface is not the only thing with which Microsoft is making us happy, the other thing is that this browser's speed will surprise you, it is really fast.
I personally made some tests with a page where I had a lot of Javascript with asynchronous calls to the server, I didn't even needed to use any tool to compare IE 9 with other Browsers like: Chrome, Firefox and Safari. Do you know why? Because you can see that by yourself, without any tool.