I've shipped machines with Michelle via STI 3 times now and the service has varied on the delivery handling end locally. I strongly suggest having the games palletized and wrapped, and giving them strict instructions not to unwrap/unpalletize until they get to their destination. If you don't palletize them, they do wrap them in blankets and shrink wrap, but they take that off at the receiving facility that arranges the local delivery prior to rewrapping them for local delivery. This is a service to make sure that they aren't damaged, but is just a liability thing to protect the local delivery company. Moving the machines around on the dolly period is just asking for trouble (at least with nice machines). They broke leg levelers on 2 machines that I had brought in, and that was the last time i do that...
They do help move them inside, but they are not as careful as I am so last shipment I had them drop them off in the garage and I handled them the rest of the way.
All in all, the experience is fine. You just have to tell them exactly what you want, and plan to avoid any potential situations for folks that just don't gaf to mess up your nice pieces.