The Cygnos has quite a lot of extra wires that need to be installed, not just quick solder points. From what I've seen regarding the Nand-X, there are few quick solder points and one wire. I'd consider that a lot easier to install.
Again, everyone is free to get what they want, but I see nothing about the Cygnos that makes it any better anymore. Yeah, their software seems pretty cool, but it's nothing that special. Having their own software doesn't automatically make it better, and since the Cygnos is almost twice as much as the Nand-X and 360NandFlasher, and they all do the same thing in the end, I see no valid reason why you'd still choose the Cygnos, especially since it's MAIN feature was Dual-Nand, which is no longer present.
The only thing good about the Cygnos is that they have their own software, yet you're still doing the same thing in the end. When the Cygnos is priced at the same price-point as this, and is an actually simple quick-solder solution, then I'd consider it something to look into, but right now it's still almost twice as much, more difficult to install, and is no longer Dual-Nand which is the main reason I looked into it in the beginning.
But again, to each his own.