If you are a Plex Pass subscriber and use a Roku, then you can get immediate access to the new interface, which is a good deal easier to use. It's still under development but since it's just another Roku channel, there's no risk of adding it.
I think the interface is easier to navigate than the standard horizontal scrolling list. The instructions for installing are in the linked page but here's how simple it all is:
- Log into your Roku account at https://owner.roku.com/add/PlexPass
- Press the “Yes, Add Channel” button
- Return to your Roku and visit ‘Settings > System > System Update’
- Choose “Check Now” to (force) update the channels on your Roku