I had a GC300 that completely quit working after a few months, Icotec replaced it, second one has bad speaker buzz - Icotech wouldn't replace the 2nd one. Garbage it is... The GC300 has been replaced in their line up by the GC350, which I have heard ONE positive review for recently.
I have a Spitfire, the precursor to the Wildfire, and a buddy has a Wildfire. For the money, I'd buy an Inferno if I were buying today, as the difference in call sounds included is worth the difference in the barely marked down discontinued stock of Wildfires and the Infernos ($200 for Infernos, $180 for Wildfires and Spitfires as I've seen them so far).
I'd buy the FoxPro Inferno.