I am using Realtimeboard just for personal reasons at the moment, but I have to say it is one of the best tools I have discovered in a long time.
That being said, I would love to have a better table app. The build-in table app is not that advanced or user-friendly. Perhaps there is a way to make the Google Sheet integration more seamless?
Another point that was already mentioned are bullet points. Would be great to have this in the text mode.
Anyways, I am sure you have other priorities in the backlog too … Keep up the great work!