I recently acquired a Yaesu FT-70DR, a Fusion series digital radio. I have a good amount experience with digital radios, including DMR and P25 radios, which I install and maintain at work. And personally I've got Icom and Kenwood DSTAR radios. From my experience, the Yaesu Fusion system is by far the easiest to configure and to use. With the FT-70DR, the user programs their callsign into the radio the first time they use it, that's it for configuration. The radio automatically sense when the Fusion system is active, and it changes to their proprietary digital mode.
I had the opportunity to participate in an ARES VHF net while at my QTH in Tennessee. They first conducted the net using normal FM, then they switched to Yaesu Fusion digital mode. The radio sensed the change, and I was able to join the net digitally. The audio sounded very natural, and it was clear.
I was thinking that Yaesu's digital solution is ideal for those that are not technically inclined. It was interesting that the majority of net participants were definitely seniors, so the Yaesu system is good for those that want to operate their radios rather than learning how to program.