I've been using the CX-12 since it came out and can't say enough about it. The action is quick and stays quick (easy to clean). It is rugged. For example, I accidently dropped it in a parking lot. All the parts came undone, namely the inside comb (no screws hold it in). I put it back together and there was no damage. The tone is good but different than the "mettalic" sound one expects. This is probably a matter of taste. The shape lends itself for a good seal, particularly for octaves.