Purchased my Dan Wesson Model 15-2, 357 mag with 6-inch barrel new in 1979. DA trigger pull is great, SA pull is nice and crisp, but I sometimes find it breaks before I'm expecting it to, so I seldom shoot it SA anymore. A couple of years ago, I was experiencing intermittent light primer strikes. I installed a new Wolff hammer spring, which resolved the light strike issue.
I qualified for my concealed weapon permit in 1980 and again in 2018, shooting DA with this handgun. This is the one handgun I would (probably) never sell. It always gets noticed and inquired about when I'm shooting it on at the range nowadays.
I briefly gave thought to trading it in towards the purchase of a Glock 19, but reconsidered and purchased the Glock outright. I'm glad I didn't trade, I hated the Glock and sold it within five months. While Glocks may be reliable, I think they're overpriced and overrated for what you get.
I still enjoy shooting my Model 15-2, but I'm more partial to S&W 3rd Gens now. I now carry a S&W 6946, I like the DAO S&W, which I believe is a carryover from shooting the Model 15-2 double action all of these years!
I believe the Model 15-2 nowadays can be had for the $350-$500 range, depending on condition. When I replaced the hammer spring a few years ago, I noticed all of the used Model 15 parts available on the internet and the costs they were bringing. It made me a little sad to realize the individual parts of my Model 15-2 were worth more than the selling the complete handgun itself. Depressing, but not exclusive to the Model 15, I guess this is conducive to older model guns in general.