I don't ... but about 8 friends do and it is all the rage around here (Boston) for a small carry piece. It does have an excellent reputation, although it is a Sig (I don't like them as a brand myself ... ).
I've been considering one myelf, although that would render my current EDC piece redundent and thus practically worthless ... albeit it is laser-equipped (which I say is a MUST for carry purposes in Mass).