I gave it a week hoping that I'd get use to them. They are quite awful. Both the front 50% and the side bolsters have no heat. The side bolster problem isn't unusual, at least in lower end cars. Having 50% of the front part of the seat remain freezing cold is a problem and something that even my son's VW doesn't have. I checked with a friend who also has the Next Gen and he's experiencing the same problem. He spends most of his winter in Florida so isn't too concerned about it but said that the past week had been disappointing. I've stopped using them because the difference in a heated rear and freezing front thigh is worse than the entire seat being unheated.