Nope. No one has ever stayed there.
More seriously, there are two *long* "We Love Bonnet Creek" threads that you can read to get lots and lots of feedback. We had a wonderful time there. We would put it on par with OKW. They are about the same size, but the WBC units are a bit more sensibly furnished (a real dining room table!) and WBC can be, ironically, "more Disney"---some towers have Epcot views, with the castle and Wishes in the distance. Its location on Buena Vista also makes it more centrally located than the OKW/SSR corner. With the new hotels opening in the complex, the big problem (no sit-down restaurant) will be solved.
You should assume a car is mandatory. There is a shuttle, and it runs reasonably frequently, but I would not want to depend on it. No Disney perks, but other than the transportation, I rarely use them anyway---in five or six weeks onsite, I think I have attended a grand total of two EMHs, and one of them was a mistake on my part---the park got ridiculously crowded very quickly. WBC doesn't have the location advantage of BLT, BCV, or BWV, but then again neither do the other DVC resorts.
YMMV though. If you are the sort for whom Only Disney Will Do, I'm sure you'll find enough to complain about.