My family and I have stayed at BC Club level in August 12 and January 13.
On BC: We love the pool, theme, Beaches and Cream, CMs, but most of all the location. Being within walking distance of our favorite parks - both Epcot and HS - has meant that at peak times we don't need to rely on Disney transportation.
On CL: I would give it a 8/10
Pros: CMs, breakfast, evening sweets/alcohol, comfortable seating
Cons: size of room itself (at about 9am and 5pm - it can be hard to find a seat/table), and of course the coffee is awful.
Overall, CL at Beach Club is great. I love being able to get something quick for breakfast, get a NY Times, and read a paper whist queuing at International Gateway waiting for Epcot to open!
Enjoy!
(Phew, first comment over!)