I am a current Ashworth student, working on my AA in Paralegal Studies. Before enrolling, I had the school checked out by some attorneys I knew, and it got great reviews.
Like any other degree, a large chunk of your marketability after getting the degree is simply up to you. Get good grades, network in the feild you want to work in, and make sure you check the local regulations to see if any other types of licensing or certification is needed beyond the AA.
The distance learning world is growing in leaps and bounds. There is no reason why a person with a distance education degree cannot be just as successful as someone with a degree from a brick and mortar school. Make sure your writing skills are well honed, have a professional looking resume, dress appropriately for the interviews, and make sure you are well spoken.