I have a Five-seveN and I love the gun. I'm a re-loader too but I have no desire to reload the 5.7x28mm round. I have full faith in the round especially the T6 ammo that mines loaded with when on the night stand or woods carry.
Having said that, sometimes I think about selling the gun because to a reloader, having to buy ammo is very expensive. I can reload all my pistols rounds for 10-11 cents each including .357mag. Truth is I've only fired about 150-200rds because everytime I shoot I cring at the money I'm sending down range. The Five-seveN is my only poly gun and feels no where as good to me as my Sigs or revolvers. If/when I do sell it the money will go to more Sigs and revolvers.
Nov 2, 2011 sent form 4, SS Sparrow. Arrived May 29, 2012.
Jan 30, 2012 sent form 1 for SBR. Arrived July 12, 2012
Jan 22, 2013 Sent form 4, 762-SDN-6. Arrived Sept 13, 2013