Likewise the tool-less drive clips worked well. Rails are not even needed with the optical devices in the 5¼" bays, although SilverStone does recommend putting a screw or two in each side along with the clips, just to be on the safe side. From what I can tell, they are held in place fairly well and unless you plan to physically move the computer around a lot you could most likely do without the screws.
The clip for the power supply cables is nice to have, especially considering there is no opening to hide unused cables behind the drive bays, although you could always use the drive bays themselves to route excess cabling. The power and SATA cables coming off the rear of the hot swap cage do tend to clutter things up a bit, and those with full-length video cards will most likely need to move the cage higher in the case in order to have enough room. But it's nice that SilverStone has thought ahead and made this possible.
On to final conclusion.