Extremely enjoyable game. Reminds me of portal, but not in the obvious sense. I'm talking game fluidity. Some of the levels are designed to be completed in one swift motion, like in portal, and I love that.
However I did get stuck in one spot though, I just brushed it off as me being dumb and restarted the level but I read the comment below and I thought you'd be interested: http://i.imgur.com/MTc6Km1.png
I was pushed up through the green portal and when I came back down I held down jump, causing me to jump up from the blue barrier. From there I couldn't get enough momentum to get out.