GUINA is a good choice among pianos at this price. Don't worry about quality. Guitars sell well in China. You can go to Taobao's official store to inquire, or you can post on Guitar China Forum, where there are related special sections. As for the problem of making products, there is basically no need to worry about it except that there are quality problems at the factory. If it is really a factory quality problem, if you buy a guitar in China, it should be replaceable.