I bought this a while back and I haven't used it since. The most annoying thing is the copy protection. There is a constant request for the cd which is extremely annoying. I found Dynamo unusable because of this.
Sound quality is good but CPU usage is very high. Its versatility is offset by the few instances my computer can handle. I think the included ensembles are quite versatile but the fact that NI have released only two more and have not updated Dynamo is not good enough in my opinion.
There are other more useful VSTi's out there which consume much less cpu. It's possible to buy a synth and drum machine/sample player for the cost of Dynamo and as other companies have a much better updating policy I can't recommend Dynamo if value for money is a consideration.
Dynamo is a product of its time but time and development in the soft synth world has moved on.