I really do not know what you are talking about. Filthy way? We did not use your kitchen facility. We stayed there for three days. No kids, just two of us adults. The only thing that I can think of is that I left some left over food items and boxes in your refrigerator because I had no idea how to get rid of it. You had no trash bins. No instructions on how to dispose of them, of sorting out the trash, of where the dump site is off of your small apartment. I am wondering, do you even know what "filth" is?
As you know, I left my comments to be constructive, not to be critical, so that future guests can judge the use your facility based on my experience of using your facility. Perhaps, before judging me as "filth", you should leave some instructions as to where the trash bin is located, how to turn on the heater, or any other "helpful suggestions" in the facility. You left no instructions. You told me to call you for any questions. I did not have a phone for I was not staying in Korea but a few days. You even gave me a wrong address of your apartment when I first arrived, I was knocking on a wrong door for 15 minutes!
This apartment may pass for your Korean clients, but this place is woefully inadequate for anyone not from Korea. As matter of fact, you and your facility would be an embarrassment. I would not recommend you or your facility at all.