The case has good looks as you can see right off the bat, we got the brushed steel looking one and it looks great on the outside from first glance. The smooth cool silver lends a big hand in how the case feels and with no rough edges and clean lines it will suit many a PC builders visual approval. The Front panel offers a few I/O options as well as the start/restart buttons with everything being easily accessible. Ergonomically I feel the USB ports and the FireWire ports should be on top the case as I put my PC on the floor next to my desk, but this is a personal opinion and one that may not matter to some users at all.
The Poseidon offers a removable rear I/O shield, and you can see the fans lights when they are lit up at night. The pre-made vent holes offer rubber edged washers to give your liquid hoses a non abrasive surface. This is to help ensure they do not get damaged or cut by metal edged surfaces causing leakage and eventual system failure. All the edges of the top and sides have been machined and buffed as well making the steel safe to the touch. All the side panels come off via thumb screws that allow for a tool-less environment and make removable and reattachment simple. The case comes with an optional clear panel window that you can use to replace the steel grill side that is installed standard on the case coming out of the box. This looks good if you are planning on tricking out the inside of your vase with neon lights and such.