Chrome has the simplicity I like on the outlook. It doesn't come with the font rendering I like in Safari but I think in due course those eye candy features will come either in the core or from plugins.
At first start up it didn't impress me because it took a long time to render Google's personal home page and crashed. Once a few pages are cached it was alright. In Task Manager I see few instances of Chrome, one for the chrome itself then one for each tab. There is also one for default functions such as shockwave flash etc. You can try ending those processes one by one and you'll know what has been terminated and taken away.
Try open a new tab and enter 'About:memory' in the address bar you'll see more about memory usage. Google is ready to show off, i.e. putting Chrome side-by-side with other browsers running. They know you'll be comparing are you not doing that right now?