I own a 325NG...
...and it's my primary carry gun.
The recoil is akin to shooting .38 Specials in a J frame revolver. I removed the issued Pachmayr's, and replaced them with Hogue's. This further decreases the felt recoil. Besides, I like the Hogue's, and I have them on all my N frame revolvers. (Yes, they're butt ugly, but they work.)
I've put 100+ rounds through it at the range in at least three sessions, I regularly practice with it, and there's no real discomfort using it. It's not as soft as my Model 625 (Jerry Miculek, 4"), or my Model 25-2 (6.5"), but it's very pleasant. The volume of that large N frame does make a difference.
Hope this helps.