Initial reaction: the homepage has too much abstract marketing verbiage, e.g. "Do Less. Achieve more" and "Boost your productivity."

What you failed to answer with your homepage is exactly what the product is and what exactly you're trying to solve. Unless I am genuinely interested or came to your site via a referral, I'm most likely not going to stick around to read the copy beyond what's in the hero, let alone view the screenshots further down the page (which BTW loads unbelievably slow).

Be direct and to the point. Clearly show what your product is without pouring the marketing gravvy all over it.

Other than that, the product itself looks great, though the design reminds me very much of outlook.com. Good luck!