Stressful but in a way that feels intentional! The tutorial seemed simple enough, but I really liked how things got out of control so quickly.
I'm not sure if it's how the template works or a deliberate choice, but in Oblivion's lockpicking, there's a short window where the tumbler remains at the top after bumping it, and in this fast-paced environment, not having that meant that unless I was frame-perfect at fixing the engine, I was basically doomed.
Overall I think if it were a little less punishing I'd have a better time with it, but it's a really strong concept that's still fun in spite of its brutality.