I use one in a mix PVE team I mainly used for leveling purposes only. In PVE I haven't been able to get a decent amount of DPS out. The warrior currently is still only level 80 and can only do around ~2k DPS (fresh dinged 80 though).

I'm still only using a single castsequence macro on it and plan to convert to a proc and DPS macro as soon as start to level it again but I'm not really confident in being able to get a good macro setup out. Arms is pretty reliant on procs. For that matter I agree with the poster above saying that you might want to switch to your arms warrior as main focus and let the other(s) follow.