For what it's worth, my flatmate was on the Diversity Access Scheme last summer in London (now the Pathways to Practice), and she had very little good to say. From what I gather, the firm itself was perfectly fine, lawyers were nice, culture was good etc. But she said it was extremely disorganised from start to finish. E.g for converting to a TC they did a few things on the scheme, but they had to have a separate partner interview an unknown amount of time after the scheme. She got about two days notice to go back down to London about 4 weeks after the scheme had ended, but ultimately was unsuccessful and encouraged to reapply for direct TC. She has not reapplied lol.