To be totally honest, the pioneer looks tacky, and at $300ish or whatever it was, probably end up with some annoying problem like knob failure, screen failure or ground loop problem (has happened in all my pioneers bar current one, which cost in excess of 500).
A mate of mine also has the JVC 805, when on it looks quite good, and the controls were relatively easy to use. Only had a limited fiddle with it though, so not 100% clued up, and dont want to lie to you lol.