Has anybody used liquid lawn aeration?

About 2 months ago I laid a new sod yard. I tilled the entire yard about 6-8 inches deep to loosen the soil to give the new sod roots a good start. Well, the yard isn't doing so good even after continued watering. I called in a lawn care company and they have treated the lawn with fertilizers and premergers (for the weeds growing between the sod). They recommend lawn aeration and overseeding this fall which is what I plan to do. I have found a few companies that offer a liquid aeration that is supposed to be better that traditional methods such as spike or core aeration. Has anyone had any experience with this type of aeration? Aerify! and LazyMan™ Liquid Soil Aerator are two of the companies. Any help would be greatly appreciated.