Finally got to the point where I had to do this quest yesterday (Yes, I'm levelling very slowly ...)

I actually liked the instance. I wouldn't say it had stealth mechanics, since you couldn't actually really hide, just make sure you stay far enough away from the enemies. I never got close enough to any of the magiteks to aggro those, apart from right towards the end where I almost ran into one. I'm pretty decent at avoiding enemies though, that was one of the major things to do back in EQ and FFXI and such

But I think I liked quest because, like other have already said, because of the desperation. Also, I'm very attached to my character (I've been Elezen since 1.0, only changing to Viera for a little while, but that never felt right), so when my body got stolen, that really didn't sit well with me at all, and I wanted to get it back ASAP.

I can imagine a lot of people not liking it though, because it's a pretty hefty change of pace all of a sudden, going from near invincible to being very vulnerable.