Degrees are two edged sword. Sometimes they more fully qualify you to act in a certain capacity, sometimes they can over-qualify you.
I've experienced both with my degree.
In the eyes of your employer, he wants to see that you are competent for the role in which you will serve, without being a in a position to risk other interests such as reliability or cost, if over qualified.
Your customer may interpret your degree to be favorable to understanding unique problems, or on the other hand no help at all except to justify a more expensive service, than otherwise would be necessary. but if you are not the operator, but instead the supervisor or owner/supervisor than this negative is probably not perceived.
Let me give you an example. If say I was going to a small office tax preparation firm with a CPA doing the returns. My first impression is that something is amiss here. A CPA/MBA doing simple 1040A's is probably going to be expensive, or on the other hand I might think that this guy must have a serious deficiency if he's doing simple tax work with an MBA.
Now I've used CPA firms for tax prep of a Trust, but the CPA is head of the firm, whilst most of the people doing the work are not. This makes the service much more reasonable in price. Would it impress me that the firm only used CPA's in every capacity? Probably not, and it might make me even a bit nervous.
This is my two cents, while I still feel that most all the other responses have been valid too.
The bottom line is, that the perception of that degree will vary among your target audience. Some will be comforted, while it may cause others to question the situation.
-Shawn-