Title: bad material quality
Review: i previously had a tumbler from the same brand and was very happy with it so i decided to get a new one. unfortunately, the company changed the plastic type used for the lid and the new one wasn't resistant, it broke at the first fall so i had to get a new lid. I;m a mechanical engineer and know my way about materials their properties and cost, and is my opinion that the change on the plastic used was based just in reducing cost, unfortunately a once strong and reliable product just became fragile. The autoseal mechanism is still ok and the only good remaining feature.
Is this product review negative?