Hi,
ODC PE navigation and functionalities have bugs and logic isn't user friendly.

1.1. Cannot login with the username and password from the owner of the environment in an app.
1.2. Cannot edit created users or add a password to them. Name keeps as "Unnamed user".
1.3. Result: without proper setting up the users, we cannot use the apps that we test before implementing them in the client.
2. Remember Me in ODC login doesn't work. After several minutes we need to insert credentials again.
3. Login in ODC Studio should be available inside the app, without needing to do it in the browser. Browser login should act independently, specially if we want to login in apps with other users.
4. Make available Login action in server side so that a system user can be added 
5. There isn't a button to open ODC Studio without opening an app. 
6. Add more logs to the Logs, like we have in O11 Service Center. Just published an app and gave an error and nothing appear in the logs. We need to have more in-depth information in the logs.
7. Messages used in "LogMessage" action don't appear in the logs.
8. Add sort in apps in ODC for Created Date. 
9. Add details in ODC in each functionality.
10. Add details in Platform Updates to know the impact of updating.

Note: A Developer should have control at all times of what he is doing. For that, more information is needed and ODC doesn't provide enough control on performed actions or in logs. There are several O11 features that should be implemented in ODC. 

Simple is not always better, specially in an enterprise platform, as control should be the drive in this case.