Lacey will never hang a piece, but is easy to trap with the simplest of combinations. HOWEVER....

We didn't have settings available such as "don't extend" or "don't use qsearch", so while the search does indeed stop after finishing a normal depth 1 search, it still extends/prunes/reduces just like normal, and has a qsearch.
So, for example, in this position:
[d]7k/3b3p/1p6/3p1P1P/2p3r1/2P1R3/7r/2RK4 b - - 0 40
Lacey has no trouble finding the forced mate in 7 with Ba4+, because each move by Black is a check and White always has only one legal move as a reply.

We also found that Lacey has an enormous psychological effect on humans, because she moves instantly (no matter what the time control) and doesn't APPEAR, at first glance, to ever blunder. I have seen a Master lose to her when we simply said that he was "playing against Chessmaster" -- implying the program, but not the personality.
We also estimated her rating to be around 1300 USCF, but mostly due to the psychological effect. It would be MUCH lower against engines.
jm