We just launched the ability for you to generate CSV files, of all your leads within a selected date range. If you're using a page with a form, and the form is set as a conversion goal, this will let you download your daily conversions from each page.
Improved reporting is something we plan on tackling soon. That being said, we're still quite aways from launching the ability to view visitors and conversions by day. We prioritize our product roadmap features based on customer demand. We've just launched Mobile Responsive and Script Manager, and are currently building SSL.
Can I ask, do you use any third party tracking tools? I'd love to learn more about your tracking needs and what you currently use.
Thanks in advance for sharing!