My 2012 642 is a silver paint finished aluminum frame gun. Very light and easy to pocket carry. I think its a good choice especially for $300.
There have been reports of the silver finish flaking off on some guns especially those exposed to sweat or sweaty holsters as in IWB carry. Mine has spent its life in the safe so I can not give a 1st hand account.
Out of my five J frames the model 649 is my favorite, but biggest and most heavy (22 oz).
XS big dot front sight and Uncle Mikes rubber boot grips added, lock removed.