First off, it's great! To be honest, I discovered SRB while searching for enzyme cleansers on Hwahae, as there are many other famous enzyme cleanser brands out there. The reviews were positive, so I've been using it for quite a while now. Just remember, you absolutely shouldn't use enzyme cleansers daily! The enzymes provide deep cleansing right into the pores and exfoliate dead skin cells, so frequent use might cause irritation. Using it 2-3 times a week is ideal. When you use it, you can definitely feel your skin becoming smoother, and makeup applies better. On important days, I sometimes do a quick cleanse with this in the morning, and my base makeup goes on much more smoothly!
To be honest, I haven't tried any other enzyme cleansers besides this one, so I'm not sure how it compares. The foam doesn't lather up incredibly well. It does foam up decently, but you need to use quite a bit of powder to get a good lather.
You must leave the enzyme cleanser on your face for at least 5 minutes, like a face mask! If you don't do this, there's no point in using an enzyme cleanser. Also, enzymes react better with warm water, boosting their effectiveness, so make sure to mix it with warm water!