I like my Nitto Technomig to get the bars up a bit, but that bike is in a different league!
That stem is almost as tall as the fork.
When the title said long stem, I was expecting some 150mm extension or something. I see that stem as tall, not long. (I know it is picky, but it conflicts with what was in my mind before I saw the picture) I was expecting to see the bars out near the leading edge of the wheel.