Finally Google Chrome has matured, its now stable and faster than ever. Currently in version 22.214.171.124, you can expect far better reliability with this version.
You can read up on some of the new features here: http://www.online-tech-tips.com/google-softwaretips/google-chrome-2-review-features/
Not sure why Google have opted for manual updates, maybe because products like Safari bombard you with updates? If you are running older versions, click on the tool icon menu, then click About. You’ll find the update option there.