I think most of the criticism of Bose is that their products are way overpriced. For significantly less money you can purchase speakers that perform as well, and in many cases much better than the Bose. It is a case of people retaliating against the marketing hype. I personally think Bose are fine speakers...they are a little bright sounding for my tastes, but if you got them for half MSRP count yourself lucky. After all, in the end what sounds good to you is all that matters.
As for tips.....try and mount them so that the cubes are at about ear height, and keep a fair amount of seperation between the front "mains" With small speakers it will help with imaging and sounstage. Enjoy