I have both the Whistler TRX 1 and 2, and I also have the BC996 P2 and the BC 325 P2. I can attest to occasional bad P25 reception, but it is not a problem all that often. I think there is something hidden in the "Expert" features that I am missing out on, as the manual does not explain everything you need to know. The big plus for the Whistler units is they can record and playback. Slow scan speed yes. And the boot up is terrible. My Unidens. Well, they truly "Rock" in every way, and no complaints there. My BC 325 is my "go to" field radio. Lightweight, easy to carry, and it is no bother to keep an extra pair of batteries in a dedicated pocket. For air band the Unidens knock the Whistlers right "out of the park".