It really depends on how much you sit each day. Pocket carry while sitting is only slightly better than unarmed altogether if you need the gun quickly. In that scenario, almost any other carry method is preferable.
But if you're on your feet most of the day, or at least when you feel you need protection the most, pocket carry is absolutely fine. If you stay aware of your surroundings and perceive a potential threat developing, it is awful nice to be able to casually slip a hand in to a pocket and be ready to go.