I can tell you that it is worth it if you can work on the relationship between the two of you. It is NOT a fast fix! There will be set backs! It is worth it.
For me, after we started working with a counselor, things seemed to get better right away, until our next big fight and the feeling of hopelessness and absolute despair seemed to hit harder. This was extremely hard for me to deal with. However, we were able to recover faster. We have been working on things for 2 years now and while things are much better than they have been in nearly 15 years, there no where near where I think they should be. I still have doubts and wish I could afford to go back into counceling. 21 years of bad communication habits are hard to break.