I started using timeline about 3 months ago and I really like the layout. There are a few things that I really like about what you can do with it.
1. Customize your header with a personal photo. This gives your site a great look.
2. Being able to click on the activity button in the upper right corner and then seeing all your activity by date. You can add to the time line from here and adjust and edit everything you have shared in the past.
3. Using the enhanced share, and list tools are so much easier as well.
below is a video of how Time line works and a link to getting it.