SimCorner receives mixed reviews from users. Some customers praise the prompt delivery and reliable performance of SIM cards, especially for trips to the US and Canada. Positive feedback highlights good customer service and successful refunds for faulty products. However, there are also negative experiences reported, such as poor coverage in certain regions, delayed deliveries, and lack of communication from customer support. Some users faced issues with SIM card activation and unresponsive customer service. Overall, the feedback is varied, with both satisfied and disappointed customers sharing their experiences.