I owned one of those smiths. In fact, I owned two. I had a 6906, which was the small double stack alloy framed version of that gun, and the 3913.
While they were comparable in size to something like a Kahr P9, they did not carry nearly as easily. The double sided, slide mounted safety dug into you and added a lot to the width, as did the slide release that stuck out like 1/2".
They are definitely very nice guns. But they dont carry nearly as easily as a Kahr P9 or Nano or similar gun.