What does the speaker imply about their decision-making regarding the restaurant?

The speaker implies a sense of regret or disappointment about their decision-making regarding the restaurant by expressing that they wish they had chosen a different place. This suggests that upon reflection, they have negative feelings about their choice and believe there might have been better options available to them. The underlying tone of regret indicates they are not content with how things turned out, which aligns with the choice indicating they regret not opting for another restaurant. Such an implication demonstrates a level of dissatisfaction with their current decision and an acknowledgment that alternatives may have been more favorable.