I took my guitar to Ibka for adjustment due to string buzzing that "high-class" specialists couldn't eliminate, explaining that it is what it is and it will stay that way. I should add that the guitar was adjusted in several places (Inowrocław too - I will leave that without comment). It turns out, however, that everything can be corrected in a guitar, and even the string action can be lowered, you just need to know how to do it. I recommend.