Ok, I'll get the ball rolling. I did purchase the Flexygy cable taking advantage of the 10% discount. I was very happy with the short delivery time and the package they came in. The birth certificate is an interesting addition. It adds a certain personal touch and makes you feel that the company takes pride in its product.
The cables have a very good build quality and are quite attractive. They are very flexible, so they should be quite easy to place in tight quarters.
The one thing I really like about these cables is the expanding bananna plugs. They are easy to insert and really lock in place. The spades on the other hand were a little small for my speakers, but still adequate. The flat cable is quite unobtrusive visually.
In my system(Sunfire TGIII, Sunfire CGII, Sonus Faber Concerto, Concertino, and Solo, REL Q150E sub) they sound fine. I would certainly recommend these cables.