Are you sure you're a native speaker? Be honest
Dear kideumin,Ignore hangook77. He has been doing this for years. He complains about the salaries being offered and openly is disdainful of the teachers that accept them. His only aim in telling you to not accept anything below 2.5 plus housing as a first year applicant is to try and raise the bar in regards to salaries. A noble if misguided pursuit. It is highly unlikely you will be offered 2.5 straight out of the gate, especially as you are not currently on an E2 and in Korea. Getting 2.2 or 2.3 would be an achievement and keep in mind you will likely get many 2.1 offers. Depending on your savings or debt requirements you should be flexible your first year. Focus on a reasonable salary for you and good working hours. Don't go to a sweat shop. As for your cover letter, you can tone it down a bit. What they'll be looking at is photo, documents ready and when can you arrive. Yours is more along the lines of an essay that a public school might ask for. Simplify it and be succinct. Too much to read through and they may just move on. Also, you're comparing yourself to another candidate. You should write "fast" learner instead of "faster" learner. And what are "punctual skills?" Can you run really fast? Just say you're punctual. You over explain it. Of course, lateness shows tardiness, they're synonyms. Just take that all out. You're trying to oversell yourself here and to be honest your writing falls apart in places. Simplify it and just present key points. Remember photo, documents and availability are what it comes down to.
Onnut will set you up for being exploited. You will quickly find his low salary suggestion that your money won't go far. Korea is a lot more expensive than it use to be. If you come over and accept his salary suggestion, then suit yourself. But don't say I didn't warn you. His suggestion for salary offers are from shady employers trying to prey on new teachers ignorance of work conditions here. Many do sadly try to pull that scam all the time. There are plenty of higher paying job offers on various Facebook teaching groups. Google searches and whatever.