Assembly
Installing the motherboard is done by traditional means with the use of the included spacers and screws. There is plenty of space around the CPU cooler to, for example, reach the connectors above it. Even long graphic cards fit, but you should double check the dimensions just to make sure as the NVIDIA card used comes pretty close to the edge of the HDD cage.
Each of the hard drives are placed on the plastic trays. These feature plastic pins, so you do not require any tools or screws for 3.5" drives. One does have to use the included screws and a traditional screwdriver when installing a 2.5", though.
Once in place, simply slide the drives in until they snap into place. As you have to slide them in from behind the motherboard tray, things should look quite clean when viewed from the main side panel.
To install an optical drive, simply flip the metal clips outward and take out the cover of your choice. Once free, simply slide the drive into place and use the plastic locks. They, as expected, do not really pin the drive down properly, so I strongly suggest dumping them in favor of actual screws, which would look better anyways.
When installing the optical drive, I realized why Antec is actually advertising the chassis with "3 + 1" 5.25" bays. The bay at the very top cannot be used for traditional devices due to the I/O PCB being in the way. It can only handle things that are not deep, like fan controllers or VFDs.
Installing the power supply bears no surprises. Simply place it there and screw it down with the included black screws. There is plenty of space to use long units if you really want to stuff the chassis full of hardware.
Once everything is in place and a bit of time has been spent on proper cable management, the interior does make a surprisingly good impression, even though the rubber covers of the management holes are missing. There are enough hooks behind the motherboard to properly secure all the cables and keep things clean.
Finished Looks
With the side panels back on the chassis, the Antec GX700 makes a really good impression. A slight eye sore for me is the fact that the optical drive is in the second bay, but the black and green mix works well. The side panel's air vent is at about the same height as the graphics card, so you may aid in its cooling by mounting a fan there. All the connectivity in the rear is easily reachable and of the standard variety.