Some people might not find this “feel good” but the humor of the advertisement is offbeat. I won’t ruin the ending by commenting further.
Some commentators are failing to see the “feel good” of this video and are instead focusing on the means by which the message is conveyed. Is not the mouse’s triumph over unsuspected danger and death a good thing? Being victorious over adversities one encounters in life makes me feel good and this was a cute, clever way to get that across.