How reliable are these?

[xxx]

They call it "Predators" around here. (Mainly because it's named "Acer Aspire Predator" or sumfin'.) The first I saw this PC was from a pic in 4chan, I thought it was just an upcoming design, Then I orgasmed when I saw one in a Hardware Store. Thing stood tall like a freaking Holy grail. But there's one thing that crossed my mind

Are they reliable when it comes to gaming (Or any other frigid tasks)? Are the looks just as sharp as it's performance? Will I have to rebuild it's insides for better results? (Since it's looks alone convinced me into wanting one. xD) Thanks in advance. If the replies went back positive, I might consider purchasing one. (Then I'll name it Thrax. >) [Summarize all of these questions as; "IS IT A GOOD COMPUTER?"]

Thanks in advance c: