I got this to help reduce the menopause related acne scars I got in the past few years. How rude...I never had acne going through puberty but I get it going through menopause when my skin doesn't have the same elasticity??? Hmph! Anyway, I am hoping this helps and I will update this review in several weeks. For now I will review it based on ease of use and my first few experiences with it. I really like the weight of this pen. It's substantial and doesn't feel cheap. Without looking at the instruction manual I could figure out that you held down the power button to turn it on and then there were 6 speeds to cycle through. I also saw that you could adjust the depth the needle could penetrate, up to 1mm, by twisting the top. Then I got into the instruction manual and the problems began. The instructions are written in the TINIEST font ever. I could read it but the associated diagrams were relatively useless, other than the schematic of the pen itself. For instance, the needle head can be adjusted for the viscosity of the serum you decide to use but that diagram was unreadable and it was hard to understand where to align the indicator on the cap in order to set it to 1, 2, or 3. I had a thicker serum so I wanted 3 and I am still not sure I successfully set that. It also wasn't clear if I should be angling the back of the pen upwards to assist the flow of serum. The videos on the product page helped a little with setting the viscosity level but everyone seemed to hold the pen with the end angled down but I don't know if that's correct or not. I've done a couple of sessions with this, using 1mm over my scars and 0.5 on the more sensitive forehead. It did produce a couple of tiny pricks that brought up blood, but I also have broken capillaries on my face so that could be from that. I did not find it painful. But after it looked and felt like I had a sunburn. I washed my face and applied my night cream and went to bed. The next morning the sunburn feeling and look was gone but there was still a light flush. It was rather nice. The second experience with this was similar. I will come back and update in a few weeks to report on how my scars look. At this moment I think this pen is nice quality, comes with a healthy amount of supplies, is competitively priced (and cheaper than the spa), and easy to use. It's worth considering as an option. Just, it's better if you already know what you're doing.