It was fine until the new update. Now it sucks. Most of my progress was removed and I have to retake the basics at 0.1x speed. Grammar tips? Gone. Ease of navigation? Gone. Rewarding progression? Gone. I guarantee it's all from some business exec with no clue of what users actually want. Why didn't they trial this with us first? If they cared about their users at all they would revert this update.
