I am a previous user, and at the time, I didn't understand some of the settings. Although I'm still exploring it now, I feel the quality is much better than when I bought it six months ago. While I have many questions, I would suggest releasing more official videos, for example, on staggered profit-taking – I really don't understand it yet – but overall, it's worth buying. Additionally, I hope the number of test runs can be increased for greater accuracy. I feel that long-term tests aren't very accurate, but I hope it will get better and better!