I just picked up my new Shadow2 (polycoat) from the lgs. I am very happy with mine. I don't have gages, but I'm guessing mine has a SA pull around 3lbs and the DA may be somewhere between 8-9lbs. Compares favorably to my S1 with a 13lb trigger spring and RP trigger spring. The SA trigger pull is also very good, with a slight amount of takeup and very little creep leading to a fairly crisp break. The reset is very nice. I know there has been some talk of grittiness in the trigger, but mine is not gritty at all.
I'm happy with it the way it is straight out of the box. I bought mine stock from CZC and they included a target, with actual bullet holes, that all the rounds of the group would fit into a 1.150" circle - although they don't say at what distance (I'm assuming 25yds, but don't know for sure). If I measure center of bullet hole to center of bullet hole, the grouping is under one-inch.
I really like the way it feels in the hand. The mags drop freely - I'm digging the extended mag release (for the moment). The mags say 9mm on one side and .40 on the other. I guess that means there will be a .40 cal S2... I'm going to clean and lube it up and then run some rounds downrange at the first opportunity.