There's not a lot of data on this system but my impression is that it works about as well as Thermage.  Which is to say that it works best in patients 30-50 with the expectation of subtle skin tightening.  In over 50 patients, in my opinion, both work best as maintenance, done yearly or twice a year, to keep the jawline tight if it's already pretty good.  Neither Thermage or Ulthera can help someone who has a lot of sagging or true jowls.  Surgery is still the best option for those patients.  There is good data that Thermage builds collagen on everyone, regardless of whether there is a visible result.   Dr. I