Obviously as it is the rule now; everyone is copying Arc. But why not doing it with style? I would very much like to see a browser that beautiful and more functional. This is not meeting that standards.
Saying that, I always like adding extras on top - and I've spent a lot of time making sure users can tweak how they like. I didn't manage to squeeze everything into this final release, but the .1 release will re-expose a lot of customisations that are buried in `about:config` preferences.