It has great graphics that are supported by the unreal engine thats really amazing. Maybe some people dont like the art style, it reminds me of CoD 4
It has the same problem with every game it get repetitive, but I find it enjoyable. It more like a unreal mod then a full game that could explain the low cost... only vavle could realize mods shouldn't be 50 dollar *points at L4D 2*
I find it fun, I play with James, Satan, Viper, Res and other regs. Its even more fun with good company.