Too funny, Bert. I think it's somewhat subjective. Also, someone trying to get warm in 10 degree temps are going to appreciate the heated seats more. And like Nate pointed out, some of us 450h owners will take any form of heat. Still I'll bite.

• Do my seats get warm enough? Yes
• General outside temperature during seat heater use? 0-40F
• Cabin heating/cooling system status? Auto on; windows closed
• Model Year & RX350 or RX450h? 2010 RX450h
• Leather or Semi-Aniline Leather Seats? Leather

 

Do my seats get warm enough? Yes
General outside temperature during seat heater use? -10~65F
Cabin heating/cooling system status? ON - Auto; Windows closed (A/C compressor off)
Model Year & RX350 or RX450h? 2013 RX450h
Leather or Semi-Aniline Leather Seats? Semi-Aniline
Eco/Normal/Sport/Hybrid Snow? Normal/Hybrid Snow (I don't like Eco; dunno abt Sport)