Been using this for years, has definitely helped my acne, though I do get small bumps occasionally.
Very drying when you first starting it, will subside if you use it regularly and use a good moisturizer. On 'aging' skin (i.e. anything over late 20s), can definitely cause irritation/dryness and even make you look like there's fine lines if you use it too close under your eyes or around the lips. I now only use it along jawline, chin and forehead.
Use with good moisturizer, and small quantities of quality make up (finally figured this out recently), it will probably help you too. Good luck!