Basenjis, like any breed, can be hard to train, or they can be easy. That is a case for looking at a breeder where you can assess the parent's personality. However, bear in mind that with a mix breed dog, the descriptions are often just what the dog looks like, which doesn't mean that the suggested cross is actual. So reading up on the traits of the breeds may be an exercise in futility. Read the dog, not the books.