Overall it is good time killer. However, some of player's emotion easily affected and I find many players use inappropriate words. "profanity" report can not cover as usually inappropriate words using mother tongue slank. I wish it has "block user" features. Worth it!
If you want to use this app as a versatile note-taking app like Google Keep, you'll need to implement reminders. I am currently trying to use it for a personal journal, so this is not a problem. I'm mostly satisfied with the app. After saving a rich text note on PC, I opened the note on Android. Somehow the content became HTML and a revision number was added. Why did it happen? This is an unexpected weird behaviour, as the last modification time has been updated at the same time and the order of notes has changed. It looks like a small bug. Flawless