From one point-of-view, the real good thing about Barnstormer is that it's over so quickly. So, if anyone finds it too intense, it ends fast.
As a non-thrill ride guy myself, I appreciated that it ended quickly. Now, I've built up my tolerance enough to go (and enjoy) BTMRR. Barnstormer helped with that.
The climb at the start can be a bit nerving, if you don't enjoy the drop that comes after it.