The interface of this early version is much improved over the current Outlook on the web and we appreciate the work that's being done on improving the OWA experience for end users. Giving us the ability to opt in early to provide feedback while features are still being worked on through enabling this to Targeted Release customer is in my opinion a smart move. I know we have users in our environment, who are willing to work with that. That said, I'm in favor of not releasing this version to GA until the features currently available in OWA are included in this early version of the new Outlook on the web. Having to toggle back and forth between the new version and the current version when you find features you're used to suddenly missing is less of a stellar experience.
Some of the features missing in this early version but not listed above are:
- the ability to open another mailbox to which you have full access (e.g., shared mailboxes)
- being able to respond to a voting request
- 'mark as phishing' (the control appears to be available in the settings, but not actually in a message)
At any rate, keep up the good work!