I like the Peacekeeper's irons a lot. It has a clear sight picture, and with the low recoil and long range, it is very versatile. But it doesn't do anything really well; in a game with smallish maps (and baaaaaaad spawns) range just isn't all that useful. I would trade the range for the magazine of the PDW, ROF of the Skorp, or the damage of the Chicom.
I guess the only really positive things I would be able to say about it would be great irons, looks pretty neat in camo.
"If you can't make them see the light, make them feel the heat." -Ronald Reagan