Is Microdermabrasion Painful?

While I was looking into how to get rid of acne scars, I found out that one of the ways to do this is microdermabrasion. Can anyone tell me whether or not this is a painful procedure? I figure this is one of the less harsh methods of getting rid of scars, so I am hoping that this method will work out and be able to get rid of my scars. I am so tired of seeing them and then seeing all my friends with their nice scar free skin. I will be so much happier when I don’t have so many scars.