I am also an Ag Pilot and have used the blulink for a few years now. Great price vs. Flightcell. Sound quality is great. The only thing i would change/add would be an external power source for us folks that use it all day, day after day.
I purchased this adapter to use in my Air Tractor as I am a Ag pilot. Flying for hours at a time just spraying can get pretty boring so I like to be able to listen to music through my helmet. I have used many adapters in the past such as a safety cell (wired) and a Commlinkpro (Bluetooth) and the Blulink works far better than both. My music quality is great and my phone calls are clear. Most the time the person on the phone doesn't even know I am flying! I would definitely recommend the Blulink!