Great start but then problematic
The first few lessons and tests were great - explanations were easy to understand, and there was a sense of achievement when passing a test and being awarded a virtual medal. However, the fourth test on the full stop was impossible to complete successfully - I knew where I needed to drag the full stop, however, the UI simply wouldn't allow me to put it where it should have gone and then told me my answer was incorrect. I lost all confidence at that point, which is a shame as I was enjoying it.
