Our 41 is my wife's principal gun. We had a 5" gun and sold it about a year ago when she temporarily lost interest in shooting and wanted the funds for another project. Her interest rekindled recently and we just purchased a 7" 41. She tells me that she shoots the 7" more accurately than she did the 5 and I'll take her word for it (she's a fantastic shot, btw).
If you've never fired one of these, it is a pretty amazing experience. The trigger on the 41 is as light and crisp as any trigger I've ever handled. The gun is very, very accurate. My wife occasionally gets 1" groups offhand at 25 yards with it. She says that the 7" barrel is very easy to hold on target.
As for fit and finish, I find it hard to believe that the older models were any better than the ones we've owned. These are beautiful guns!
One thing else. The 7" and 5" barrels are interchangeable. For a bit under $300 you can buy a replacement barrel from Smith. We're planning to get a 5" barrel to complement the 7" barrel on our current 41.