I was all set to get one about 2 years ago and then I found my Meiser which derailed that idea... Sean has worlds more experience with it than I do but what sold me on it was casting the Nextcast Fall Favorite 45 6/7 which is about as money a dry line as you can get for the rod.
It is not a forgiving rod for novice casters and as Sean says it's easy to come off track on a sustained anchor cast if one does not apply power correctly.
I've fished the Death Star a few times and would definitely agree with everything Mr. Beauchamp has to say. It is a great rod. That being said, I say the 12'3" Winston is a better rod. IMHO it was a bit more forgiving than the Death Star, and a fair bit lighter. Both rods do very well with modern shooting heads in similar grain ranges. Can't go wrong with either, but for $500, get the Death Star.
I haven't either and the way I understand things is that the 8124 is a predecessor to the TCX 7126. Also if I am correct it was George Cook who first coined the term "Death Star" for the TCX 7126 because he liked it so much.
The TCX 7126 really is a fantastic rod and if I did not have my Sage 8124 and my MKS 7136 I would be all "I have you now" to the Death Star.... minus the getting spun off in to space because my wing man was just greased by Han Solo.