It would really churlish to go through the minor niggles with Connected Data's latest offering, the Transporter Sync. "Churlish" however turns out to be one of my middle names, so here goes.
I don't like the UI graphics. Oh, and I'd prefer USB 3.0 support.
Apart from which, Transporter Sync turns out to be pretty much a no-brainer addition on the kit-that-pays-for-itself list.