to me, the beautiful and positive traits are the the thing you are warned about.
My personality made me want a dog that was a CHALLENGE:
I did not want a dog that stayed in an unfenced yard - I wanted a dog that wanted to explore the world! ( a dog that would enjoy exploring the world with me and my kids)
I did not want a dog that accepted all humans and dogs right away - I wanted a dog that required a human or dog that it met to prove itself worthy of it's attention! ( so we would have that in common)
I wanted a dog with an urge to hunt. In fact one of my goals in breeding was to produce dogs that I could throw out in the woods out back, and know it could survive if it had to.( I never threw them out in the woods, I just wanted them to retain the ability to hunt that their ancestors required to survive)
I wanted a dog that THOUGHT. I wanted a dog that would require me to out think it sometimes. (At times they would do something that we had to figure out WHY they were doing it. It usually came back to their need to hunt)
I wanted a dog that constantly assessed the situation, and decided "What's in it for me?" I probably go through much of life that way, and sometimes, what's in it for me helps me to realize why it was good, or not good, for someone else.
There are a couple of posts mentioning their sounds. I just wanted to explain that all dogs do NOT make these sounds. I had one line, staring with my diva, Rosa, that made NO sounds. I had another that had a most beautiful yodel, and was as different from Rosa in most basenji ways. (In fact, she was an embarrassment to the breed in Rosa's mind). Their kids and grandkids were/are the same. No sounds vs sounds. However the girl I have left from the 'embarrassment to the breed' girl, is so vocal, 3-4 times a day. Every time we make a big deal of it, because it's so beautiful (and we have to decipher what she's trying to say.
Please remember sounds/no sounds is not a reflection of their happiness with you or where they live. Sometimes it is genetics.
And that makes me think of one last thing - basenjis are very good at reading your actions. If you think they're doing something because they love you (and you show it) they will continue to do it, to get the same reaction from you.
Be sure that whatever they are doing gets a positive response from you, you won't mind them doing forever. For instance, sleeping in a special spot - make sure it's ok if you let them do it, only once!
Owning a basenji means that someitimes you just have to let things go, and not sweat the small stuff.