I was tempted to buy it on the spot when I saw the Kiss of Kali trap, but then I'm running a Kali temple death trap scenario this weekend. I did read from Will Upchirch that it contains just traps and poisons whereas the first one has traps, poisons, prestige classes and feats, but that there will be a new rogue sourcebook from them covering prcs, feats, etc. as JGK said.