I did not complete the whole set (yet) but I was particularly impressed by the low-visibility approach to SEQU, with FS AI ATC.
Now I had some bad experience, in the past, with AI ATC in mountain areas, when the "AI" repeatedly tried to convince me to descend and turn into a hill (and of course, as soon as I cleared that hill, he declared my approach as missed

).
But none of these occured at SEQU. I could not see obstacles ahead but I was looking at the terrain displayed on the GPS. And sure enough, every time I got close to a hill, the AI instructed me to turn.
I even got a bonus because, having missed my first approach (failed to properly disconnect the autopilot on finals :$ ) I had to do the whole pattern once more.
Only once I received a wrong turn indication, which would lead my nose into a hill, but a small "interpretation adjustment" was enough to clear it, and afterwards the AI kept issuing sensible instructions until established.
This was one piece of thrilling approach!
Andrei