Both my wife and I had the stock seats which were just not comfortable, especially for longer bike rides. After experimenting with different options we decided to upgrade to the C9 bike seat and a huge difference, love them!
Took my bike on its maiden voyage this past weekend the C9 seat was very comfortable and made the bike look cool with the white wall tires.
Ordered these seats as an add-on to our two new Donheny Bikes. Our bikes were shipped with the seat so had no reference to what the original seat would be. Asked for the original seats and they were shipped immediately. Obviously the comfort seat is more comfortable but nice to have the original seats as a spare in case a seat is damaged or stolen.