Is the double happiness gas stove easy to use?

It's quite useful. My family always uses double happiness. I remember my father bought a double happiness stove from the market around 90 years ago, and it didn't work very well when he bought it back. But I studied this manual for a while and got used to it. That single stove was used for 5 years, and then I used the double happiness stove on the desktop, which is very durable. Now it's a double happiness furnace. Needless to say, everything is fine.