We are very excited to hear your feedback! You can send us feedback by posting in this Google Group or contacting us at firstname.lastname@example.org (mention new "UI alpha" in the subject). We'll be periodically updating the alpha based on your feedback, so please feel free to join in on the discussion and invite others to this Google Group. If you do choose opt out of this alpha, we'd love to hear what went wrong. Thank you and cheers!