A group of elitist arrogant medical students kill themselves (temporarily) to scientifically measure the near-death experience sounds absurd. Yet the response is, "I'd watch that." I remember reading Julia Roberts begged Joel Schumacher to be in the original. Her fiancé' at the time, Kiefer Sutherland, was cast in it.
Here's the problem: if you conceive a potentially great idea, give it to someone who will flesh it out and develop it into something great. Offer up characters we care about, so that when they travel to the beyond, we feel it.
This movie, as with the original (which I might like even less) has nowhere to go, with people we don't really care for. This movie became rather tedious, so…