I bought the 3 part system after receiving the serum in my birch box. The serum does not smell great- but it works.
The cleansing solution and the cream smell just fine and are great preventative methods to use. My skin does look better since I started using it- but I still have spots to fix and the serum is perfect for it.
Note: The cream is a very, very small portion. But the large cleanser and serum make up for it.