Once you've installed and gotten used to a LumaWarm, sitting on any other toilet seat will be a cold shock. It really is comfortable, year-round. The nightlight is another great feature. Additionally, the hinge allows the seat to close slowly on its own, no "slamming."

The only downside is that the "adjustable mounting bolts" that attach the seat to the throne do not go through the hinge assembly as they do on conventional seats: the heads of the bolts have grooves that match up to grooves in the hinge assembly (to accommodate US and EU styles of bowls). Because of this, the seat tends to move and shift around on the bowl, and sometimes becomes completely detached. Tightening the bolts does not help. It's a pretty major design flaw and the only thing keeping me from giving a 5 star review.