The verdict is that it's good, but the Sargent suits me better. I think the problem is I'm not normal at 6'4".
I'm too tall, and I like a little more back & forth wriggle space.
I think it would be good for normal height riders, and it's definitely comfier than a standard seat over a longer distance.
It is quite firm, but then again good long distance seats (Sargent, Kahedo) are firmer than standard.
The design is good - quality leather, well stitched, there's no seam under your thigh (a neg point on the Sargent in terms of comfort for some), and the bum curve is correct for maximising the spread of pressure.
They supply a very simple bracket to attach the seat part to the bike with two allen key bolts so that's about 5 mins installation. The Smuggler pod part clips in under their seat bracket and is secured at the back by the normal BMW seat lock mechanism.
I can't say if the overall combi is a good fit since I couldn't fit the Smuggler pod without piddling about with the grab rails, but it's very well made, and is considerably bigger then the Sargent pod. It would hold all my tools and pump easily, which is a annoying.
Removing 2" off my legs is going to cost
an arm a leg and a leg, so I'll stick with my Sargent and a rear bag for tools, and pop this on eBay at some point soon.