Interestingly, Uncle Lu's success in the pop music world has been met with criticism and disdain from some classical pianists. The primary criticisms include a lack of depth, melodic simplicity, excessive repetition, and the use of cheap emotional manipulation techniques. As a genuine, dedicated listener, I simply want to say: whether it's profound or not, simple or complex, as long as Uncle Lu's music makes me feel good, that's all! :)