Last week I finally picked up my Sierra with a Aspen Avionics EFD1000 installed. I flew a couple of ILS approaches with it and it was great. The unit performed as advertised. One of the approaches I let the autopilot fly and I left it in the heading mode and pressed the GPSS mode on the Aspen and the Aspen GPSS took control. I highly recommend the unit.
Submitted by Jack Klute