I'd say that there is WAY too much variability between individual churchs in just ONE denomination for this to be very meaningful.
That depends on what your goals and expectations are.
I’m not trying to ferret out denomination wide distinctives.
I’m asking for a very personal set of multi-dimensional snapshots at a variety of congregational types of the Christian experience.
I find that exceedingly fascinating and informative about Christian life as well as human nature in general.