What do you think of this plug?

Yes, I also use spark plugs. Then I throw them away and buy more spark plugs when they need to be replaced. I dont prefer any particular spark plug, just one that sparks.
Spark plugs from china spark just as well as spark plugs from Iran, Australia, or here if they still make them here.

Gap them right, and use the proper heat range and brand is irrelevant.
They are consumables. You use them, then you throw them away.