Ahhh, the question, to crate or not?? You will get a varying degree of opinions here. I've owed 4 basenjis over the last 30 years. They were all crate trained, but, and this is a big BUT, they were allowed free roam of the house, bedroom & bathroom doors closed, after they proved trust worthy. This is NOT to say there was not destruction. There was on occasion. I was okay with that. When Delli chewed and destroyed my $80 earbuds, was I upset? Sure, but, hey, I left them out where she could get ahold of them, my fault, NOT hers. Crate training is great for vet visits, traveling, and when they need quiet time if they choose. Although Tim was crate trained, he did not like being left alone. When he had a bout of pancreatitis, and we had to leave him overnight, he was such a stinker, making art with the newspaper and dog food in the crate and making a huge fuss, they resorted to putting him in the clear plexiglass, iron lung so he felt less confined!! Tim was my clown, and too smart for his own good.
I guess what I'm trying to say, and what most of us say, is best they are crate trained for if the time ever comes that you need it. AND leaving them out depends on the dog, and his/her personality. Our first basenji was a dream, easy, independent, very low maintence, so much so, I decided another would be so much better an experience! Joke was on me...Tim was well, Tim. He was an imp, a monkey, he just needed the foam red nose. He put high in high maintenance!! He was so different than our female, like night and day! A tired Tim was a good Tim. And I had to backpack him on our walks to wear him out, he was so high energy. At around 8 years old we started leaving them out for short periods of time, but it was only after I had read an article about a family that last their beloved basenjis in a fire because they couldn't get out of their crates.
It's a personal choice, however, you should put your dog's needs/protection first. Some basenjis are determined chewers. This can be dangerous for the dog, as well as, expensive trips to the vet for surgery for a ripped stomach from a shard of bone. We all have horror stories, or battle stories, sometimes we win, sometimes we lose. Tim was a counter sufer, this meant EVERYTHING on the counter have to be pushed back exactly 11 inches, because he could work that paw like a friggin human hand determined to get whatever it was he wanted off the counter.
I'm sorry there is no standard yes/no answer here, but like I've stated best be prepared and have the dog crate trained. I can also tell you this, I've had to reupholster my couch twice, and we had to get a new living room set, 3 new living room rugs. If you value your stuff, put it away, otherwise it's fair game! And you must have a sense of humor....