I sent a bunch of a Feature Request feedbacks for what seemed like obvious and easy improvements that maybe only a new user would notice.

There are hundreds if not thousands of to do list and productivity apps on the web, but something I've noticed is that many of the smaller ones have very devoted users. So my unsolicited advice is to try to make a niche happy, rather than trying to make the general population like it. Target feature improvements at the people who already want what you're making, ignore the folks who make feature creep suggestions because they're looking for something else.