HollandFocus’s review published on Letterboxd:
Belgians Marcel and Bob both like a tipple, and the fact that at least one of them is an alcoholic shouldn't at all detract from that statement -- irrespective of dependency, drinking is something that they most certainly enjoy, and it appears to be the basis for their friendship. Despite this common ground, they're rather different characters -- Francophone Marcel, who readily owns up to his alcoholism and seeks treatment for it, seems relatively thin-skinned when compared to the sharper, older, more pragmatic Bob, a Flemish speaker who claims he can stop drinking any time he chooses (it may be closer to the truth to suggest that Bob seems to be a model functioning alcoholic). We see them in a number of situations together -- at the dentist, in hospital, following the departure of Marcel's wife and kids, and so on. They are also shown separately, most notably when we see Bob's attempts to reconnect with family members and Marcel's detox. Bob is by far the more interesting (and less infuriating) of the two, and while both men (and their friendship) make for reasonable documentary material, they are nowhere near as interesting or engaging as the filmmakers seem to think. Worthwhile, but, as with its two subjects, "Ne me quitte pas" doesn't quite fulfill its potential.