In my opinion, there is really very little advantage to you as a patient.  The results of the treatment are the same.  The CPT system is a a little faster (benefits the doctor) and it has a "vibrating" hand piece.  Having tried it, I couldn't really tell much difference.   To me the vibrating function seems more like a gimic since the NXT systems that have built in cooling are comfortable already.  And, it seems likely to give the operators of the Thermage system carpel tunnel (I'm only half joking).  Dr. I