Thread lift or fillers? What would you recommend?

Hi, I am 40 and this is my biggest insecurity. I cant make my mind if i should do threat lift or fillers to fix this part? A clinic recommeded ulthera but then i read a lot of negative reviews about the clinic that they always try to sell their most expensive packages. They offered 3 sessions of ulthera. I personally hav seeing many before and after photos that did thread lifting with amazing results. Another clinic recommended fillers but the first clinic said the filllers will move and look bad