The Hazmore seat is more comfy than the older style, but I'm speaking of the older 5years plus seats. It is not as comfy as the newer style(within the last 5 or so years). I don't sit more than 3 hours at a time. I also probably stand as much or more than I sit down. If you are honestly going to sit for more than 3 hours and want comfort as a high priority then you are best to use a Summit or similiar style seat.
