We only did the first encounter which went pretty smoothly except for Giggles critting (almost killing) a fighter and the rogue failing 5 of 6 Saves against the Drain Spider.
Only thing of note:
The Sorcerer with the Draconic Bloodline taking Toughness had 12HP at first level. He was not caring about running into danger. When the Jigsaw shark took 4hp bite out of him he said, "I can take a few more of those."
I'm not sure that's what a sorcerer should be doing but he had more HP than 3 other players and was only lower than the 2 fighters.
I know the situation will change as level increases but still...
(This was an Alpha v2 playtest but this bloodline power is still possible in Alpha v3.)