Hello,
My name is Artur, and I'm a 24 year old Pole.
Currently I'm studying Japanese, originally I wanted to write this ad in 日本語, but I believe that reading this ad in English will be a good practice for you.
I have been using English for most of my life, in middle school I have passed the FCE [British] English certificate, and later on I have gotten into, and graduated from the American High School.
As I said, I'm currently studying Japanese, and my current level is best described "intermediate". I would prefer to use ONLY English during the class, but I might explain some grammar or vocabulary in Japanese as well.
There's also an option that I could teach you my mother language - Polish - but I don't think this option will be too popular!
With that being said, and with me filling this questionnaire as descriptive as I could... if you have any questions, don't hesitate to contact me.