I have actually never heard of the Nefertit Lift" so looked it up: most references indicate it appears to be a non-surgical procedure using Botox or Dysport treating muscles that cause skin to sag. My own feeling is although there may be some small improvement that is about it. I have extensive experience using Botox and the results will be minimal—hence you are not going to have the significant long term benefits as a surgical procedure. If it is too good to be true then generally that is the case.
Other mini-lift procedures such as the Lifestyle Lift, LiftLift, Quick lift and others are branded surgical techniques. The primary concern is who has branded these techniques and which surgeons are the most qualified to perform them. Heavily marketed mini-facelifts are often performed by surgeons who are not board-certified plastic surgeons or facial aesthetic surgeons. The doctors who perform these surgeries are often ENT specialists without prior aesthetic fellowships, general surgeons, dermatologists and even oral surgeons who have not undergone the rigorous training or length of training.
The longest and most thorough training are probably Plastic Surgeons certified by the American Board of Plastic Surgery. This is the only Plastic Surgery program recognized by the American Board of Medical Specialties, and requires years of training and education. In general, the better your surgeon, the better your result.