Bests & Worsts Reviews from Amazon

I don't know if I received a bum product, but two things are not right with this product: 1. When filling with a hot beverage (coffee, tea), the top slides/pops up. I slid back the drink hole protector and then put the lid on ... so as to let the air escape ... then slid the protector back in place and that's when the lid starts sliding upwards. 2. The "straight" steel straw does not fit in the lid drink hole. I will be returning this item as it does not meet my needs. PROS: - Quality build - Nice accessories (two steel straws and one cleaning brush for the straws) CONS: - Lid slides/pops up when filled with a hot beverage - The straight straw does not fit in the lid drink hole. SUMMARY: This is decent for cold drinks with the angled steel straw. Other than that, it is useless for any hot beverage or the need to use the straight steel straw. Disappointed. Will be returning this for a refund.