I picked up an XDS 4.0 in 9mm about a week ago and finally got a chance to take it to the range today. Simply put , I love it. Put about 300 rounds threw it, Federal, Remington , Winchester white box. Not a single problem all day, even toward the end when the thing was pig dirty. Every round fed, fired and ejected. I sent about 50 down range nice and slow then put it threw the paces. Double taps, triples , rapid fire both clips , you name it. I was also impressed with how quickly it got back on target and how fast the front sight picks up. Glad I chose the XDS 4.0 over the shield , which my wife has and I do like it, but the xds 4.0 wins hands down IMO. A lot of fun to shoot, very happy with my purchase.