I've avoided buying a phrase trainer for some time now. I'm being asked what I want for Christmas from my family and I'm real tired of socks and boxers etc. Anyway I thought that a phrase trainer might be useful on some harder to hear/figure out tunes I work on. I don't really need one or I would have had one already but it seems like it would be useful. The small amount of research I've done leads mostly to the Toneworks Pandora boxes with mixed reviews. I really don't need any of other features and the phrase trainer seems to be just an extra. The newer PX4 or what ever the number is seems to be improved all the way around. Most complaint are it's too small and the controls are difficult to work. Any just phrase trainers or mostly phrase trainers? Any experiences with the type you put a CD into.