Tapping on "Quick Tour" causes UI glitches and the app to become unresponsive. The first time actually lead to a respring.
Also, after tapping on "Contact Us", the email sheet cannot be cancelled. Tapping "Cancel" causes the buttons at the top to be grayed out. Sending works fine.
I've attached a few screenshots of what I see when performing the above tasks.
System: iOS (8.0) iPhone 5S 32GB
1Password Version: 4.5.3b3
Device Name: iPhone