Looks great! What about readability though?
Text seems low contrast to me. Although I have a poor vision and most things seem too small and low contrast to me.
A calculator that runs by itself is a clever way to show the product without asking anyone to read. Watching a price turn into an invoice explains the value instantly.
The black diagonal stripes behind the wordmark give a coming soon page an instant gallery feel. Is there an email capture on it, or is it brand-only for now?