It depends on what you mean by usable. I can drag and drop samples from Cosmos onto a track in my DAW without needing to use CR8. I can also drag a sample from Cosmos onto SampleOne, the Studio One sampler. If you are wanting to do more than that, for example to manipulate the samples, define loop points, change the speed, and a whole host of other things, then CR8 will allow you to do that. It is up to you to decide if CR8 is better than the sampler that comes with your DAW.