I got a 950 recently (right after the price drop), and I have been consistently pleased with it. So the answer to your question is "YES, but" - with a caveat for a specific kind of user (one that I happen to be).
If you are into the latest apps and need to keep up with your friends and relatives on this score, W10M is not for you. The same goes for add-on services such as mobile payment and the like. MS seems to be interested in providing these things, but not as fast and not as robust as Apple/Google.
If, however, you enjoy Windows generally, and are into the idea of re-sizable live tiles, then W10M is a good fit. If you want mobile photography at a high level, but don't want to pay $700 for one of the flagship competitors, the 950 specifically is a really good deal for you right now.
On the 950 - I have found it to be very reliable. I am on Insider Release Preview ring. The OS is smooth and a pleasure to navigate. The camera is very good, and generally outperforms its iOS and Android competitors in day to day use. Battery life is average - all day is no problem. The display is beautiful and the touch action is responsive. Expandable SD storage and replaceable battery (if you can find one, anyway) are a godsend, especially for photography and music lovers. The big knocks on it are heat and battery - it gets rather warm playing a game like Angry Birds Star Wars, and so I would not recommend this phone for heavy gamers. Heavy Google service users might find issues, but W10M plays reasonably well with Google Calendar and Gmail, if that's all you need.
The future is in flux. People are rightfully worried about W10M lasting more than another year or two. But given an average 1-3 year useful lifespan for a device, I don't think a 950 is a bad bet right now. Most people in the know seem to believe that W10M is in a sort of dormant phase and that MS has plans for it in 2018, anyway. But even if they don't, it's not like your phone will just stop working. It will still browse the web, make calls, take pictures, and share them to Facebook, even if current W10M apps are abandoned in a year or two.