Microdermabrasion can take your skin from dull to glowing -- fast. This heavy-duty exfoliation process can help everything from acne to fine lines and wrinkles, but can cost a pretty penny when done at the salon. Enter: the PMD Personal Microderm, an at-home device that is purported to give you that just-went-to-the-spa glow -- without the spa. Does it live up to its claims? Here's what some of our reviewers said.