Why no billing system? That must be the #1 requested feature? At least that was my understanding (missing feature) from what I could find on the web page. Other than that, simply great site and app.
Switched to timely first of August, and I'm still happily using it even though it increases my pain significantly a couple times a month when I have to invoice things--timely is just that much better for scheduling and tracking that it's easily worth it for me.
While I'm here, I would love if the web app had a multi-week view so I could plan a month more easily and drag tasks between days over larger spans.
Hehe, I can more or less promise you both of those things will be implemented.