Congrats! Good purchase, and the price was fair. Frankly, if it had been $650 you still would have gotten your money's worth. That gun will outlast you, and your kids. The good thing about the extra weight is that unlike a J frame, you don't need to worry about overshooting it. With the lighter snubbies a lot of folks advise limiting the amount of .357 you fire. I've never heard this with the Ruger. Personally, I'd use .38 for practice, but if you want to shoot .357 there's no reason not to. Looking forward to the range report.
FQ13