It definitely has some kick. A little goes a LONG way. Basically, it's hot - but not too hot. That's why we say 'perfectly balanced flavor and heat'.
Royal Heat, made with Bird's Eye chili peppers, is significantly spicier than jalapeños but not quite as intense as habaneros. More importantly, the reason we use Bird's Eye chili peppers is because the heat is different - you can still taste your food while getting as much or as little heat as you want. Play with it, you'll see what we mean.