I have used one for a long time but now it sits as a complement to the GTN 650 on the panel. The 650 is not great for some VFR data which the AERA provides such as gliding sites, towns etc.
It also has taws which is a stupidly expensive option on the GTN so I get terrain warnings from the Aera which is wired into the intercom.
I also have Skydemon on iPad on my kneeboard which is excellent and increasingly is taking over from the AERA.