If you want to lose your precious family memories and give them money, then go for it. Otherwise, use ANYONE else. They lose your stuff, then refuse to continue communicating with you and never offer a refund. They are a sham and should not be allowed to continue business. How could they possibly lose so many people's items?!?!? WTF.
Update 2/22: After I filed with the local BBB, I didn't hear anything for a while. Suddenly the date that Southtree/Legacybox was due to respond - they found my items. I have no idea where they were or how they lost them, but they were not with FedEx, they were at their facility. I received my original items back and the conversion files. I am so, so thankful to have my items back. Do not let up on them if they lose your items. They did a nice job converting the items, but the whole rigamarole of losing my items, denying knowledge of where they were, etc. I wouldn't trust them with my items in the future, but they did get my stuff back.