I was expecting the game to be a bit more RP heavy than it turned out, but I had a reasonable idea of what I was getting into. Being recruited by people I knew from another game helped a lot in that respect.
To be honest though, I wasn't super impressed with BM in my first three-or-so-months. It was only after I got made a Vice Marshal and started to realize just how deep and multi-faceted the strategy was that I went "wow, this is awesome."