Just picked one up four months ago. It replaced a compact 9MM PT 709, and followed on the heels of a Springfield XDM 5.25 comp.
I liked the full size so much, I knew I wouldn't have a problem with liking the XDS.
I have been as impressed with this gun right out of the box as much as any pistol I own.
What follows is based on 1200 rounds through it since date of purchase:
It is surprisingly easy to handle...feels nothing like a compact 45. The fit and finish are very good to excellent. Sights are very nice, easy to get on target. It's a tiny bit snappy, but you only notice it when you get over 100 rounds or so...might just be me getting a little muscle fatigue. The grip with the shorter magazine is not difficult to manage at all.
Trigger is not "target fine," but it is not bad, considering the trigger safety. Not the smoothest in the world, but certainly won't hamper shooting well, and it seems to be smoothing out as I shoot it more.
Accuracy is amazing. I did not expect to be able to hit 6 inch steel at 25 yards with the thing...but I did, as well as several others who tried it.
No FTE's/FTF's of any kind. Shot Rem and Fed 230 gr ball, Hornady Critical Defense in both 185 and 230, Blazer ball in 230...ate them all up without a glitch.
Take down is easy, cleaning is not a chore...
in other words nothing to dislike at all. [I know, I know, part plastic, made in Croatia...but they made me a believer with the XDM, and the XDS has done nothing to change my mind!]
Case comes with everything you need. I ordered some 7 round mags. My carry configuration is the 5 round mag in gun in the holster, the two 7 rounders in the magazine holster. Carries very easy, I now actually have a CC gun that I really "forget it's there."
Now it's not a 3rd gen, or a Sig...but it is a very, very good gun.
I'm a fan. Hope this helps.
Len