While I'm not particularly a fan of the Agent, I'll take a Colt over a Smith anytime. Most days I have a Detective Special in my pocket.
I do too, at least some of the time. But I would have serious second thoughts about this particular revolver.
As for making a choice. One should first decide how they are going to use and what method of carry will be employed concerning the perspective purchase; and I wouldn't limit the choice to only two guns unless I absolutely had to. If it were me I would be doing a lot more window shopping.