I actually forgot I had spec'd ventilated seats on my '22 build. Drove around for a few weeks in August here in North Carolina after taking delivery thinking "I like the car. Sure would be nice if my back wasn't always so hot though." Then it hit me on one drive that I had the vented seats and it was great. Prior Cayman had the 14-ways with no ventilation while current car has the 18-ways with ventilation. I don't notice any major difference in comfort between the two seats doing the same 2.5 hour back road drive FWIW.