gave my xd service to my oldest son it is a fine weapon. replaced it with an xd tactical model and an xds. all three work -- reliable, accurate and shootable. the 3.3 xds has surprised the snot out of me. i shoot it as well as the full sized models. the xds hides very well obviously, the service model was more difficult and the tactical needs cold weather and a jacket. pick the one that best fits into what you require of it, do not be worried about accuracy. all three will impress.
the xds with 5 round mag is small in my hand but handels very well. the 7 round mags with sleves make it feel better in the hand with. don't be afraid of the small ones, they shoot lkie the hand fillers.