Can every brand benefit from adopting service robots? To tackle this important question, we examined the interactive effects of brand personality (sincere vs. exciting) and service robot type (high-contact vs. low-contact) on customer reactions to service robot implementation. Results from three experimental studies indicate that customers tend to react negatively to high-contact robots when the brand had a sincere (vs. exciting) personality. This tendency is driven by the poor perceived fit between the sincere brand personality and the implementation of high-contact robots. However, such brand personality effects are mitigated in the adoption of low-contact robots. For a sincere brand adopting high-contact robots, we suggest that signaling warmth can enhance the perceived brand-robot fit and thereby reduce negative customer reactions.