But couple of times, when I pressed Ctrl-T for opening a new tab, the entire broswer hung.
I too experienced the same problem a few times. On one or two occasions, it hung probably because the new tabs were spawned off some parent tab (Ctrl+click), and hence they were not "independent". But if one does a Ctrl+T, then the new tab is definitely a separate process, and yet the browser hangs because of one bad tab.
Compared to Firefox, Chrome seems to be somewhat slower too.
But then it does have some good features. Let's hope it gets better with the next version.