Yeah I kind of agree with Vaz, although you could just as well play a few small games to figure out what works best for you. I'm a veteran WHFB player who transitioned to 40k (because at the end of 6th edition fantasy was pretty much dead and 40K was still popular as ever) and I'm really liking this new direction GW is taking. WHFB has always had a steep buy-in which was very discouraging for me to start a new army but now you can play a quick and fun game with only a few models! Anyway, I'm hyped and can't wait to start a small Skaven warband!