What do you like best?
When i was a little bit younger, i loved khan academy, for simplicity, small exercises, and bunch of interesting programming adventures, cool demos, etc. They have very good explanations, with inline editor and a video, and students asking questions. I remember when i first started coding, khan acad. helped me with canvas drawings, svg animations, and some basic sorting algorithms, and i loved it, really, everything was a bit structured and you can find anything you want, ok maybe my base scope was programming and khan acad. had everything ready. And so much information, i would make a prediction for future, but studying in internet is becoming real, cool stuff.
What do you dislike?
The growth, as soon as khan academy has grown, it was really hard for young people, newbies to feel comfortable, and i think the main reason is the structuring, everything is on main page, like a newspaper, bunch of unnecessary words. Ofcourse they have awesome search, and it helps alot, but .. you know, google has more data, but it shows only top 10. not all.
I can't say "i hate this part", but i don't like the data presentation in khan academy. i'm sure they have ton's of informations, books, articles, videos, interviews, but you need to structure it, when you go to school teacher doesn't give you all books from grade 1 to 11, indeed they can, but it will not help schoolboys, it will hurt, and even studying gets worst.
The language - i think the more languages khan acad. spread they worst it gets. Maybe i'm an extreme, i don't use my home language when i learn something, i use english. All the time.
Recommendations to others considering the product
Please restructure information presentation, currently it's like a newspaper library. bunch of things that are not interesting for visitors, and the latency, very important thing. some times it's very aweful to surf khan acad.
I of course know that khan acad is non profit organization, i myself helped a little
But hope khan acad will grow even further
What business problems are you solving with the product? What benefits have you realized?
Well, currently i don't use khan academy as much i like quora, wikipedia or stackexchange more. What i might be interested in learning from khan academy is - algorithms, they have very good explanations, with inline editor. That's all requried for learning algorithms tho,
I will definitely use some information from khan acad. but when it's required