[TimPC]

I really like that they capture and address the problem of pushing people out into IDE's where they can do real work. Most of these sites are flawed in that they want to create a permanent lock-in to their tools, but the best learning happens once you can use an IDE.

[theoretick]

I've done a bunch of these and whenever they say "oh, we use something thats a lot like javascript but we've slightly modified it" I just groan.

I'd much rather work harder to learn something real than learn a simplified style that is utterly useless outside your website.

[pekk]

I don't see why an IDE is necessary for learning. It's good to learn to understand and write code without the computer filling in everything for you.