The Work
Why foam rather than mudjacking
It is far lighter. Polyurethane weighs a fraction of a slurry mix, so it doesn't add load to the same soft soil that let the slab settle in the first place.
Smaller holes. Injection ports are roughly the diameter of a pencil, against the much larger holes traditional mudjacking needs.
It cures in minutes. The foam reaches strength quickly, so a driveway is normally back in use the same day rather than days later.
Check the material and drainage. Product suitability depends on the installation conditions. Obtain the product specification and correct any ongoing erosion rather than treating injected material as a drainage repair.