A local club in Pottstown Pennsylvania just put a Fusion repeater online, currently operating in mixed mode (AMS- automatic mode switching). As of late July 2015, it is a temporary install to do testing/shake down, and will come offline to do final tweaking before permanent installation.
I have an FT1D and have used the repeater with several area hams, and it works pretty well. Coverage is equal to, or better than the analog 440 machine it replaced.
Some minor glitches at times when the repeater will switch back over to analog FM, but mostly no major issues noted. Not sure if the repeater switching to analog is due to some interference from the nearby 2m FM repeater getting into the receiver, or if it is someone kerchunking the machine to intentionally switch it.
Also, there is another Fusion repeater just installed in the Allentown, Pa area, and one reported to by installed on a repeater in the Valley Forge, Pa area. The Fusion repeaters are gaining traction in S.E. PA.
***N3KDJ, if you want to schedule a test on the MARC machine sometime, message me on the board here***