Yep. It's actually a really fun mission. Not essential to the game, but considering what you do and what you get from it, it's definitely worth 10 bucks.
1) I demand the return of spoiler tags!
2) The only thing I really spoiled was the planet you find Javik on. Everything else was already noted well before the game came out.
3) :fishing:
Sorry to derail the subject back on topic, BUT....
The whole "LOL! A PROTHEAN! SHEPARD'S VISIONS ARE BACK! LOL!" situation actually turned out nicely. The mission to grab Javik on Eden Prime was a lot of fun, and he's actually a pretty cool character. The flashbacks to see how he went into...
I have a prettty good idea, but I'll just talk to Logan about it in private since I know most don't want anything ruined (like the brilliancy that was Gears of War 3).