This film is polished like a fresh bowling ball. The sound, music, edit, grade, cinematography - all on point. The acting from the two leads is also pretty great, doing the difficult balancing act between dramatic and comedic.
I liked the way it subverts the 'survival' genre, initially going from 'save your life' to 'save your failing relationship' - the jokes surrounding it were mostly solid. Though some gags about their flawed relationship felt like they've been recycled from old TV series, mainly the "I always faked it" line.
The scene where they sneak down the stairs stood out in a sort-of negative way (the exit was in plain sight and yet they chose to go for the golf clubs instead). To keep this kind of survival story in tune with its genre, I feel you need to keep cornering your protagonists until they've got absolutely no way out but to fight.
That end punchline was ace, though. The actor bloody nailed the delivery.