I am not sure I would pay $900, but then again I have a 12(6) so I have bought many 3rd Gen Smiths for half that price. As for quality they are top notch, well made,reliable, accurate and good support. I have shot thousands of rounds throughout the years, with different (Smith 3rd Gen) models and a variety of different factory ammo as well as reloads. I can't remember any failure from any of them. My most accurate was a 4506 45ACP, sold it (big mistake) a 6904 and 3914, both very accurate. The smaller Smiths seem to be more accurate than their bigger brother the 5904 or 5906, that is my experience as well as others that I have read on the net. Having said that, I wouldn't pass up on decent 5906, especially one with adj. sights, I love those sights on that model. as well as the 4506. If you have never shot a Smith with the double/single action I think it would be a good idea to shoot one and see how it feels for you. Like Mark from Questar said, one with the Bar Sto barrel is worth the extra increase in price. If you really, really, like the gun and don't have a 12(6) then it's really up to you.