Boy - you guys beat me to it!
*** Disclaimer - We sell Intrigues, so take my comments with the appropriate grain of salt.
Richard has valid points, but on some I disagree.
I bought my first Intrigue, a Whale Shark medium, when they came out in 2000. I bought it purely on looks, and still have it and use it a lot.
The filling system is indeed "pure Rube Goldberg" - this design was brought to Sheaffer by a former Parker exec who wanted to make the pen at Parker (more on that in my article on the Intrigue due in December). It's not intuitive, and I had trouble with it when I first got mine, but learned how to use it correctly. It's now second nature to me, but I admit, I mostly use cartridges in mine. I think it should have been a cartridge only pen.
I agree that the filling tray could be a better design and Sheaffer and I have both had returns on broken trays. With care, it will last a long time with no problems. Mine is five years old and had a lot of use. We have a lot of customers that love theirs.
The nib is indeed a "modified Inlaid Nib™" and it is stiffer and straighter. Believe it or not, it was intended that way. My medium writes like butter and very evenly.

The Bright Metal finish is one of my favorites - and a fingerprint magnet
I disagree on the cap - it is very easy to seat because of the design. The design was debated internally at Sheaffer and doing it asymetric rather than a straight cut was done for the visual appeal. I think a straight cut would have made the pen more pedestrian, and the asymetrical cut really works with the whole visual appeal of the pen.
All Intrigues are potential barrel scratchers and we warn our customers who worry about it that posting the pen will at minimum cause wear, and careless posting may gouge the barrel. This is caused most by the large cap lip dragging on the barrel. It's why I don't post mine. The Bright Metal finish gets punished the worst because of this.
I think the Intrigue shows Sheaffer's willingness to make a really unconventional pen and they realize that they made a great product and then failed to support it with a real marketing push. They also know that such a complex pen, like the Touchdown Legacy, requires demonstration to sell and most retail outlets won't provide that. This is why they made the move to cartridge / converter pens across all lines.