Ultherapy: melting face effect, destroying subQ fat, aged look after treatment, etcetera... Any suggestions?

I've noticed a lot of reviews of people having severe complications and horrible results as a result of ultherapy. I've also notice that doctors who offer this service in their practice (those who don't) aren't commenting on any of these reviews. I'm curious as to why? Obviously this is a real problem if all these people are having the same complications. Would be nice to hear what a medical professional would have to say about these unfortunately results and possibly offer an explanation..