Already getting a JD, how hard to add an MBA

I'm already in a JD program at a school with a top B-school. The school offers a 4-year JD/MBA program. I have no work experience apart from internships, but I think I can get a competitive GMAT score. My undergrad GPA is meh, and my law school performance is around median. Basically, aside from a solid GMAT score and some great soft diversity/interesting background, my application is not impressive. Is it worth my time to pursue an MBA? My question really boils down to whether admissions standards would be more lax for JD students seeking entry into the program.