Depends what think a good decision is. It was for me and I ended up getting a great job and a wonderful education. Some people might feel otherwise. I consider it a great degree because it is focused, only a year in length and perfect for someone who wouldn't be a good fit for an MBA program. Without knowing more about your specific circumstance I can only speculate. Check out my website listed in my signature. It has just about every US program, along with placement stats, student reviews, articles, etc. A good starting point.
Master in Finance HQ