Yes, really. I personally love the aesthetics of flames on the stove, and this might lead me to choose a gas stove over the alternatives despite minor downsides like being slower to bring water to a boil. On the other hand, the air quality issue seems like a much more significant downside, though I haven’t researched it much. (I haven’t personally ever had the opportunity to choose the type of stove for a place I’ll be living, so it hasn’t come up. Someday.)