I love basenjis. I love their eye contact and their devious thinking and so many things. But even as an experienced owner -- Rottweilers, Chows, rescue, breeding -- the first basenji was a shock. I never imagined the dog aggression fueled fury she was capable of demonstrating. Nothing was too big for her to want to take on. I have never loved a dog as much in my life, but living with her was hell for my other dogs. I couldn't bear to rehome her, so I spent from age 2 til her death managing things. I am now on my 3rd. Yes, I love them, but they are not an easy breed. Just trying to get one that is water phobic to go potty on wet ground has driven some owners to near madness, lol.
To add to what Pat and Shirley said, they can work out in apartments. Obviously. But it's far from even a good bet. It's fairly true that most of us have known people or had the police at our own doors because someone thought we were killing a child. An angry basenji can be unbelievably vocal. For the record, we have a Samoyed. If I weren't home, there is no way we could live in an apartment because he truly can bark for hours on end. He doesn't do it when we are home, but wow when we are gone. Fortunately we live on a hill top, fairly isolated and we never leave him alone at night. (He's only 9 mos old.) So it's not like they are the only breed that can create noise havoc.
As for your sources, you want to always go to actual breeder or club sites. Most of those sites are not even owners, they are freelancers.
You might even consider fostering a basenji so that you get to experience them up close and personal. As Spock said, the having is not the same as the wanting! You may utterly fall in love with them.. which I did. Or you may say, whoa Nellie let's turn this wagon around.
One of my favorite quotes about their intelligence:
"Are basenjis intelligent? Yes, but not in the way you might first think. If basenjis were high school students, they would not be the brainiacs who score high enough on their SATs to go to Harvard on a full scholarship. No, basenjis would be the hoodlums with the smarts to bypass security, break into the principal's office, steal a copy of the test, and sell it for cigarette money." ~ Robin Simmons<<
For some basenji owner/breeder views:
Mid-Atlantic Basenji Club
While the Basenji Sisters post is far too absolute (there are basenjis that love water, there are some who do great in dog parks, etc), they certainly are very responsible and knowledgeable people.