Its over all great. Again, Im a teen with Cystic Acne, I'm desperate at this point, I have tried everything except this and X-OUT. I wanted to try this first, so far Im really glad I did this before spending a lot on x-out. Effectiveness So far I have been using it. They do look better already. Which Im a teenager, Im 16, acne is a jerk to me, and it does help if you use the right amount, correctly directed. Ease of Application It's super easy, and it takes only seconds of your day, not even 60 seconds. Love the ease. Take a cotton ball, put some on cotton ball rub lightly on your blemishes, go on with your day. :) Convenience Unless you cary cotton balls with you, or your friend or family member has them, you might not carry it around. Side Effects The side effects, at least with me, isn't that bad, compared to what the others have said. The burning thats really bad, its usually saying hey you're using way to much. I have had a tiny bit, but never enough to water my eyes. I get kit nears of my eyes. But you might get that tight skin feel. Immediacy Depending on what kind of acne status you have. I'm cystic acne probed. Im on my 3rd day of using it, It's a lot better. Use it correctly.