I've got a couple of the AM/FM/Cassette/CB's. The digital radios are the only ones worth anything (analog ones had problems apparently) but even those can have display issues.
They are 10 times better than standalone CB's though, I hate being in my cousins truck...listening to the radio, either miss the CB, or have to turn the radio down to have a conversation, etc. The factory ones automatically tune out the radio when there is a transmission.