I agree with suflemstr. I'm not thrilled with bus service anywhere, and that ends up being a large part of why we choose to drive to WDW...so we have our car available to head to the park on our schedule. Having said that, I've stayed at OKW umpteen trillion times since about 1992, and I find bus service there to be on par with the resorts I've stayed at as well, with the lone exception of WL. I think WL is aided by its proximity to TTC for bus service...but that might just be one anecdotal experience of staying there.
We always request rooms around Old Turtle Pond, particularly in the buildings right across from the bus stop.