About the quiz part, some suggest.

About the quiz part, I suggest treehouse remember what I did answer.

1. The case is like this, the quiz has 10 questions, I answered 8, then click next(click many times, because the network request sometime overtime), I click the review video by mistake(yes, Next Question button change to Review Video button at the same position, so I click it by mistake), now the previous 8 question I had to answer it again.

2. The last state of the quiz/challenge, when I finished last quiz(either wrong or right), the popup dialog is showed to give you a badge, seems there is no chance to close the dialog without continue(I want review my answer in this case), I had to click the only continue button, and go the quiz again from 1 to N, to review the question I answered, make the incorrect one correct.

3. the challenge's editor's auto indent is not good enough for the code, for my case(Android path) the tab key intend 2 space, but but the origin code uses real tab to intend, so the format goes to mess easily.

4. Some time I spell the word wrong because my lack of English usage, need a chance to fix it on the hot(just like challenge mode), eg.

after all, treehouse is great for the content and teacher, wait for more advanced course, wait for more improvment