this is our favorite non-Disney hotel. It is only a few years old, friendly staff, great pool, comfortable beds, spacious rooms, great food at all the restaurants we tried (shares location with a Waldorf Astoria).
Bonnet Creek is within Disney property and has been rather peaceful the times we have stayed at the Hilton (maybe 5 times).
We never tried the bus service, but it is only shared between them and the Waldorf, it looks more like the buses that Magic Express using (meaning regular seating), but we never used them so not 100% sure.