Just got back last night from SigArms Concealed Carry course (not the advanced concealed carry -- only stayed for 3 days, not 5). If I get a chance tonight, I'll post more details. In summary, though, two thumbs up.
I've been to LFI-1, LFI-2, and S&W defensive carbine. LFI-1 is a must from the legal standpoint. But I think the SigArms Concealed Carry class was more useful to me than LFI-2.
SigArms Academy has excellent instructors and an oustanding facility.
M1911