In short a Cajun is simply a wood-box, with a hole in the back. Snare Cajuns in addition have something like a snare strainer (see picture) to add a sound like a snare-drum.
The CA1 is a budget Cajun (paid EUR63 + shipping), and I feel I got a lot of value for the money. It's a simple construction -plain with one snare strainer.
It gives moderate of snare sound, other models will give more. But, it's no better than, it's just taste.
Bass-sound is nice, I can't complain.
Overall nice, and for the price -yes, very good value.
You'll find some more info and audio-clips here