Frankenstein product (how to rewrite a landing page)

Invitation.codes rolled out several new features in the past few months (inbox, browser extension, in-app rewards, pro-plans, stats, etc). Our landing page is a mess that doesn't do justice to the product depth, let alone properly explain the benefits. Being really close to the product, it's been a hard time to adjust the landing-page but we're now ready to rewrite it entirely.

What's your process to craft the perfect landing + features pages?