I was lucky enough to happen upon a new XDs under retail at a local chain store shortly after Christmas, and added it to the collection. Overall I'm very impressed with it's carry - ability and shooting. Blade-tech made me an UCH IWB holster and it rides very well. Compared to my Colt Defender, I miss the beavertail grip safety and 1911 trigger, but they are very comparable. The XDs seems to have a little more muzzle rise, but nothing that influences splits when shooting.
On my first outing (100 rds) the slide cut me back on the base of my thumb, and I managed to get a blister on the bottom side end of my trigger finger. The cut was most likely due to my high thumb (1911 safety ride) and trying to get comfortable with the new grip shape, but I'm currently experimenting with the smaller grip insert to see if that pushes my hand up slightly less. The trigger finger blister seemed to be due to the gun recoiling upward and forcing my finger to the trigger guard while resetting, almost pinching between trigger bottom and guard . The pull weight felt heavy as new ( measured 7.5#) and I believe this combined with my grip (or lack) contributed. I've since added the PRP spring kit which brought the pull weight down to just under 5#, and all seems well.
The XDs points well and appears very accurate. I'm getting used to the sights (prefer a narrower front w/more light) but am overall very pleased and will be carrying this over the Defender.