I'm one of those rare animals that is not a big fan of the pee-pee seats (as we call them).
MY wife on the other hand uses them even in summer.
I noticed when I did try them (to make sure they worked) that the heat was concentrated in the rear portion of the seat. Very little if any up front.
This is in contrast to the heated seats in my 2006 Pacifica in which the whole seat is heated.
In the winter I would sometimes turn the seats on, then put my cold hands under my thighs on the seat front to warm them.
I just can't leave them on too long, as I dislike the feeling.
Now that heated steering wheel - Wow!