On a non-retina screen, the font weight of 100 looks not so great. I'd recommend to use a media query to check the DPI.
When I saw "Discover" I expected some examples. Your product is intriguing, but I don't think there are that many people that will go "Oh, now I can finally make <insert object>". HAving some examples would be a great way to show what can be done and inspire your customers.