I definitely think this is a great program to apply to. In my network of writer friends, I know several of the mentors and several of the people who made it in and have not heard one bad thing about it. In fact, I met Stacy McNulty, the inspiration for this mentorship by Tara, a few years ago and she was one of the kindest, most supporting writers I have met. She gave a free mentorship a few years back and her only "ask" was that the person who won it at some point pass it on. So that is what Tara has done, many times over. I love the spirit of this contest and if I weren't agented I would apply in a heart beat.
Good luck!