Collecting advice for a Timeful clone

Since Google shut down Timeful, there has been no decent replacement for this app.

I felt the need for a replacement here: https://news.ycombinator.com/item?id=13855577

I'm willing to create a Timeful-like app if enough people are interested.

So, are you interested and how much are you ready to pay, and for which features?

Fire away!