Sadly, there are way too many claims and doctors who are willing to do procedures that have little or no benefit. After having done the much more aggressive CO2 laser procedure for acne scarring back in the 90s, I found that very few patients had good or great results.
Some results were pretty good, but it wasn't predictable enough to make me feel good about taking folk's money and being able to deliver. Does it give some results? Yes. But are the results demonstrable enough to make it worth the prolonged recovery time, danger of infection and potential scarring from the actual procedure? Not in my mind.
Although I own the Fraxel re:pair and re:store, I rarely encourage patients to do the re:pair. The re:store (or Palomar 1540) is a fair treatment for scarring and doesn't result in much, if any down time.
By the way, in my estimation, the best treatment for acne scarring is a little well-placed Restylane. It works much better on the types of scars that respond to it, has literally no down time and is much less expensive than re:pair.