We will see if the flow is useful to enough people and if it's worth paying vs other options available right now. Project management software is hard as there are so many different way of dealing with projects.

Also, I hope it works great on mobile or it's in the plan, otherwise it might be a deal breaker.

Also, I think I like the fact it's open source with a paid hosting if we want. Let's see how they deal with that on the long term.