wow, so I have to admit I was afraid it would be a poor portal clone at first judging from the trailer, but boy was it great just as portal !
I've got this feeling of wonder and excitement of how to solve the rooms and even though I only made it to level 14 it was so great ! the puzzle are amazing and very possible, very good tutorial which is implemented into the first levels without even noticing at time, genius ! 
absolutely loved it and would love to play more of your games ! keep going !