I'll give it a chance as soon as I can add simple extensions (like ublock, vim bindings, etc). And when they make the UI not look unfinished. Maybe it's silly, but those ugly square tab things look like a prototype before the design team had their turn. Petty as that is, I really find it annoying. Also not a fan of sharing the address bar with tabs, but that's minor in comparison. (I used IE for a long time, until well after Chrome was shipped, so I'm not inherently biased.)