Product review (1 stars): NOT SAFE FOR STOVETOP USE.
I bought this in my local-ish Korean market. Sadly the people in the housewares section seem disinclined to speak English and couldn't or wouldn't translate this for me, so I didn't know I should use a low flame and not wash it with soap. Thankfully I seem to have soaked the soap taste out if the stone. The grill worked well enough, but didn't fit my square stove top burner properly. The box does show it used on one of those portable burners, pay attention to pictures! I cooked over medium heat on a gas stove. My LA Kalbi came out good but I had to keep turning and flipping it to cook it evenly. Samgyeopsal ended up deep frying in its own fat, quite delicious but not right. Meat does not cook well over the vented section, but vegetables do all right. I had lots of smoke!!! Had to open windows even with exhaust fan on because it got so bad my upstairs filled with smoke. Again, I cannot read the instructions, so perhaps when properly used on a small propane burner this grill functions much better.

EDIT: I have thrown this out because on its second use the stone cracked all the way across and grease leaked onto my stove creating a fire hazard. Good thing I have a fire extinguisher or I wouldn't be able to edit this!