I must say they look kind of nice. I only have one of my crews decked out in them, but they look pretty sharp. I removed the badge on all of them to continue the covert look. The only thing I modified was all of the crew members are wearing the Mirror Enterprise belts with the knife and a few of the ladies are wearing the TOS nurse skirt. I went all black with career colors as accents on the belts and the boots.
That being said, I did notice some clipping with the Mirror belts. Just something you might want to look into.
Otherwise, I think they are great. I'm RPing that my alt's crew are all Section 31 members. I won't be doing that with my main char's crew.