this is not everyone's cup of tea - the underlying philosophy of
futility with comfort is presented bluntly and unflinchingly. if you
resonate with the philosophy and the general tenor of woody Allen's
matured take on life, then it's a non-stop chuckle from start to
finish. despite the fundamentally bleak view of human life (and humanity) it still finds and retrieves a positive way out (as summarised in the title).
not sure why Allen offered the part to David instead of just doing it himself - in any event, both do their job brilliantly. very simply done, the craft is sharp and scintillating - a diamond. possibly helps if you're close to Allen's and David's current age bracket too.
as for negative comments in certain quarters about it being 'unnatural' - yes, it's art!