Not as good as the original I thought.
They 'updated' but didn't really innovate too far away from the storyline (except in one important respect*) possibly because the writing for the first one was so clever. Can't quite put my finger on why it wasn't as good the second time out as the actors were as good, or even better (in the case of the Reggie's wife #2 Fay Ripley does a much more subtle job as a career woman and no kids in the mix) but for me the black comedy being less focused on laughs (through relatively standard comedic devices that probably were fresher on the first outing) didn't quite cut it, although it ought to have made the satirical element stronger if anything. Bits of it came across as pretty feeble in fact as the sense of Reggie's desperation seemed to be mis-hitting somehow.
*no faked suicide - probably the one thing they really should have kept in, even if it was predictable.