Paul, NN4F posted this review of how he finds the RSP1A:

Paul writes: “Overall, I’m very pleased with the RSP1A, I know there will be more in depth technical reviews, but as a regular ham radio user, would I buy the RSP1A, at $99 – Yes with no hesitation; I’ve been running the RSP1A and RSP2Pro in tandem here at the NN4F station, and find that they compliment each other very well”