Yes, I've had very good luck. I see a lot of them and fairly often. They help with most with C6- T1. The SI rotation starts out slight, but advances over a week or so. In the first appointment you can get a ton of information about the mechanics of your spine. That alone is worth the time. It's the fastest appointment you can get and the least expensive. Some PTs are certified to perform the class 5 thrust adjustment. But they don't get enough practice and aren't real good at detecting SI disfunction. The relief is immediate, but without strengthening won't last. Few accept the hint about seeing a chiropractor. Those that do are endlessly thankful.
I don't know your back, so I can't recommend anything other than the consultation. I only suggest from my own experience that you might find relief.