I have the 4 piece set that Michael K. has above, in the King Boy Size. IMO, it's a good looking seat, as nice as Mustang or any other, and much nicer than the Russell Daylong (but owners of the Russell rave so it must be a good seat).
I rode 660 mile in one day with the stock seat and had numb spots on my ass that lasted for 3 days. I got real nervous as after day 2, I thought I had permanent ass numbness

Ultimate happened to be a vendor at Inzane that year and I agonized over the $350 price of the riders seat alone. But, the thought of damaging my ass won and I bought the seat. BEST PURCHASE I EVER MADE! No numb spots. No discomfort. We stopped about every 2 hours or so and my ass felt great!
I immediately ordered the passenger seat and passenger backrest for the Mrs. and then wound up getting the riders backrest as well.