It hardly came as a surprise to me that among individuals taking part in a consumer satisfaction survey done in 2013, microdermabrasion received the lowest satisfaction rating with only 23% of respondents expressing satisfaction with this form of treatment. Microdermabrasion, regardless of whether crystals or diamond wands, etc are used, is essentially what was once called epidermabrasion is i.e. a procedure intended to remove the most superficial layers of the skin, mostly the dead skin layer of the stratum corneum. Doing so can promote a temporarily smoother, more glowing appearance. Actually, a similar result can be obtained more simply and cheaply by the regular aggressive use of a Buf Puf, Loofah, or even a rough wash cloth The results of microdermabrasion to answer your question are typically quite short-lived, as one might expect from a procedure that doesn't significantly affect the living, deeper layers of the skin.There is no information from your question that explains your objectives with microdermabrasion. If you have pretty normal skin (nothing particularly wrong with it) and your objective is limited to temporarily making your skin more glowing and radiant or you are simply looking for and willing to pay for a pampering, spa-like experience, then there is little harm in doing so. But if there are specific problems, such as lines, wrinkles, folds, acne scars, blotchy pigmentation, I would suggest that your money and time would be better spent with a consultation with a board certified aesthetic core physician who is more likely to be able to tailor an at-home and in-office treatment plan for your particular needs with the potential for more profound and longer-lasting cosmetic improvements than can be achieved with microdermabrasion.