"... is it worth it?"
(The following will be of very little help in making a decision, but I type fast so here goes.)
1) Beats me. It's not like we needed another k-frame in the family.
2) Heck yes, but maybe not for the usual reasons. OTOH, it is accurate and easy to shoot. I like the grips, the feel and the balance. For a heavy gun it really does handle well.
I'd never owned a .17 rimfire or a red dot and neither had my father - and we both have more money than sense at this point and the gun store opened early the day after Thanksgiving... He'd been mentioning the .17 from time to time and I'd been working for nearly a year to get him to buy one of those $1200 Anschutz HMRs, or even a $600 one, but he said the stocks were funny feeling in the pistol grip and anyway he's always liked revolvers. The shop near his house never got a Cooper .17 for him to see, so that didn't work out. He did not like the Heritage, the Ruger or the Taurus - probably because they didn't say Colt or S&W and that's what he owns.
The trigger on our* 647 is very, very good, although the SA a little stiff at almost 3.75#. I'm going to fix that soon at my dad's request and get it down around 2# or so. Until I measured the SA pull I would have sworn it was easily under 3# and it is a dream to shoot.
This gun was purchased, more or less, to go with his long-barrelled Model 17 that wears a 2x scope. Trouble is, he's been having a little difficulty using the scope with his new trifocals, so I bought the red dot(and a nylon case, cleaning stuff, etc.) and he likes it a lot. He'll be 83 this month.
John
*our - I had the salesman pull the gun out of the case and show it to my dad. My dad liked it a lot, so I said he'll take it. When the guy put the forms on the counter my dad slid them down in front of me, handed me the pen and said he'd pay for it. I said that's not legal. He pulled out a checkbook I'd never seen and said it is if your name is one of the three on the account. Dern, forced to fill out the forms.