You immediately lost my interest when it promted me to login via Facebook and provided no alternative. As a remote software developer, this could be interesting but requiring Facebook makes it a non starter. I don't imagine I'm the only professional in the world without a Facebook account either.
We're on it, so you'll have alternatives quite soon. What order would you suggest for login, like: email, twitter, fb, G+ ? What's the most painless login option for you?
iPhone 5S, 8.1.3. I'm using Safari directly. Clicking "Try It Now" opens a new window (apparently blank, but maybe a white canvas?) And I can't do anything. just a white screen. Just re tested. This is the same behavior on the iPad Air, 8.1.3.