Just to give my two cents here - I liked Big Brother, though not all of it, in general spanking stuff is not overly interesting for me, but I considered it well made and good story telling, actually fun. Same goes for the punishment story line in Kate's story.
I do prefer the exhibitionism / voyeurism aspects of both games. That even includes the kind of ridiculous - but very unique - idea in Big Brother with the hidden cams. I would call that idea genius, but I tend to overdo things. Even topped with Alice doing Cam-Shows while secretely being broadcasted via the hidden cam in her room. I really liked that concept.
So merging both games together and the way DS did it was a very nice surprise for me, especially Kate finding out what Max did and kind of accepting it, playing a long was just fantastic - as I said I like the exhibitionism / voyeurism aspects.
To me all this is pretty great, although I agree it is a bit too Max-centric. Apart from that Max is all in all pretty annoying and you don't really get it why the women fall to him unless he can blackmail them to do what he wants - by the way, I like all blackmail paths in Big Brother, I remember in particular those with Alice (smoking events and whether he helps her with the spider in her room and to which price).
Still this leaves players of the KATE story frustrated as there is a huge setup for great events (like someone wrote above already, naming most of them) in her own story which seem to be totally left behind. Just to name one, all the college mates we maxed out our stats with, teachers and so on... I still did not get anywhere with cheerleading, but it is pretty obvious that this stuff would open up great opportunities. And so on.
So for the KATE story the merging is pretty great and so, but it really is time to get back to the original story. The game is super-overly-grinding and complicated, and so it is pretty annoying not to finally be able to reap what we sowed in hours and hours of repetetive gameplay. To me the good thing is, that the pacing in the Villa is much better and much less pain in the ass than the Kate story. If DS reviewed the whole game and applied the pacing of the new BB/Kate-merging parts, it would be great.
