Overall, viewers found "PLUS ONE" highly entertaining and watchable, praising its sweet and heartwarming story, the positive portrayal of family, and the actors' performances. Many expressed a desire to find similar love and family dynamics in their own lives, with comments like "Marring into a family like this is a big blessing." The supporting character Kelvin was a particular favorite, lauded as a "natural" and a "damn good actor." Some criticism was directed at Saga's acting, with some suggesting he needs to work on his facial expressions, and a minor plot point about the main character fainting.