I find that many face or body scrubs tend to be either too weak and do almost nothing, or too strong. I recently tried a sample of Microdermabrasion by Dr. Brand and I thought it'd be one of the one that are too strong as the smell is minty, which personally makes me think of harsh, but it ended up being one of the most effective face scrubs I tried, without irritating my skin.
You simply use it after damping your skin with warm water, and as it's very effective thanks to its gritty texture you really don't need to use much, so it lasts pretty long, which is a good thing since it's an expensive product. If you have a slightly sensitive skin you can simply not rub it too much. Although, If you have an extremely sensitive skin maybe this product isn't for you.
After the first use, my skin was baby smooth, free from any dead skin, and I also felt like I got my "pre-Japan" skin back, finally ! I don't know if it's only psychological but I feel that my creams are absorbed better in my skin and I can notice a nicer glow afterwards. I wouldn't recommend using a face scrub more than once a week, and that frequency with Microdermabrasion works perfectly for me. It's one of my favorite beauty discoveries at the moment !