I have found that if you have a single property it is very difficult to maintain a place on the preffered partner program. It's virtually impossible to meet the conversion rate criteria demanded by the algorithm, and so eventually you will be thrown off the program.
Despite several attempts to reason with BDC they would not change their position. My property remains off the program, however it is consistantly busy both with BDC and others so I guess it didn't matter?
either way BDC are completly inflexible.
I find the preffered program very inflexible if you only have a few rooms. Even though my propoerty has a 9.5 star rating and is almost exclusivly booked through BDC they took me off the program because the conversion rate was "not high enough". This is the algorithm wagging the dog if you ask me!
Does not really work for vacation rentals.