Ember Temperature Control Smart Mug 2, 10 oz, White, Up To 1.5-hr Battery Life - App Controlled Heated Coffee/Tea Mug - Improved Design

The Ember coffee cups have received mixed reviews from customers. While many praise the product for its ability to keep drinks at the perfect temperature from the first sip to the last, there are some concerns about the durability and functionality of the cups. One customer mentioned that after a year of usage, the coating on the bottom of the cup started to deteriorate, despite careful handling and hand washing. They also expressed disappointment with the lack of response from customer service regarding the issue. However, they still acknowledged the cup as an excellent product and continue to use it. On the other hand, several customers were highly satisfied with their purchase. They found that the cup kept their coffee warm for up to 2 hours and appreciated its premium design and feel. Some even bought multiple cups for various locations, emphasizing their reliance on the Ember cup for their coffee-drinking experience. However, there were also complaints about the functionality of the accompanying app. Some customers reported that the app did not work properly, preventing them from controlling the temperature of their drink. This was a significant disappointment for those who invested in the cup for its smart features. Additionally, there were complaints about the cup's compatibility with certain phone models, specifically mentioning issues with the Galaxy S20. Overall, the Ember coffee cups have their strengths in terms of temperature control and design, but there are concerns about durability, the functionality of the app, and compatibility with specific phone models.