I'm a current WDI student at GA (week 7). The I in WDI stands for immersive, aka bootcamp. You basically code 16 hours a day, everyday, and by everyday I mean everyday literally. There is no break. If you dare skip homework and take a night out and have drinks on a Friday night, you will fall behind and fail your assessments, unless you already have some front-end experience or some kind of natural logic-thinking solver. Code-academy (rock paper scissors, fizzbuzz, html css) is like, the pre-work you do before you begin WDI.

To put things into perspective, they crammed javascript, jquery, ruby, ruby on rails, and misc stuff such as deploying on heroku, sql (postgres) using github in teams (git pull --rebase origin master, pull requests, correcting conflicts), cookies sessions auths sql databases, and we have to apply that on tri-weekly projects. And that was only in 6 weeks. We have nodejs, angular and some other stuff I can't remember for the remaining 5 weeks.

Do I remember the stuff I did in the last 6 weeks? Perhaps 40-50% of it. But I have my git repo, commits, classnotes/labs/solutions to look back to when I finish WDI.

WDI doesn't teach you to become an expert at what they teach you. They teach you as many basics of as many languages they can so that after WDI, you can self-study on your own.

Personally I feel it's very very expensive, but doesn't Galvanize charge you like 25k USD for their version of WDI or whatevers? Check out Hackreactor too to compare prices. As for quality, I can't comment because I don't know how their competitors are, but I love my instructor and TA - they're like my personal stackoverflow.

If you'd like to hear more, send me a message, ask here, or swing by GA. I only ever leave the classroom for coffee.