Cool, good job. I had two issues:
1. The fixed header is an issue when scrolling. Also, the pricing table has the <li> bullet points still showing. (edit: on Chrome current version)
2. Looking at the pricing page, it took me a minute to distinguish between the names of your packages. Maybe have something less "mathy".
Otherwise, great job.
Thank you. I fixed the pricing table. I plan to do a refresh of the landing page in the near future and might remove the fixed header at that time. Also, great tip on the packages. I let my passion for math slip through into the pricing.