I liked the simplistic UI, but it is not quite ready for serious use.
I tried using it on a simple svg that i had (around 1KB, just few simple lines and shapes). But it did not rendered them properly. Colors were off (black-box instead of original colors), and in one place it was showing at triangle instead of an L shaped line.
Also when I move an object, a single Cmd+Z wont undo the action. Have to repeat twice for object to go back (I am using Chrome on macbook)