The product looks rather cool and congrats to the team, but I have some concerns with this, 
<i>Today, after three years of silence and hard work, I finally get to announce the launch of Sigma... we’ve raised to date ($18MM)</i><p>1 - Building an online-based collaborative design tool is nothing that novel, it&#x27;s all about execution. Why keep it a secret. What do you gain by keeping it stealth?<p>2 - $18MM to spend only to see if you got it wrong is a rather interesting approach.