My mum has has very sensitive prone to acne skin with rosacea, so she's tried many products, MANY, and a lot of them break her out, don't work for her, etc. However, she says this product is one (out of two) of the best products she's ever tried in her whole life. It leaves her skin very soft to the touch and smooth looking. The colour of her skin is even now too. She 100% recommends this product.
For me personally, it didn't do much. I had a wonderful experience with cosrx bha blackhead power liquid, but that one didn't do much for her skin. I guess both products are amazing but it all depends on your skin and its needs. I have very dehydrated combo skin and this product wasn't for me. I don't know why.