Love the insulated mug, but lid is poorly made and not covered by warrantyI bought this mug because the several "major coffee chain" insulated travel mugs I have owned ended up leaking terribly after a short period of time of use. I researched many different mugs and ended up selecting this one, and overall I have been pleased with its performance in being leakproof and in keeping my coffee hot all day. Here are my pros and cons:PROS:- keeps hot drinks hot all day! No joke, I make my coffee and pour it in around 7:00 a.m. before work. If I still have coffee left by 4:00, it is still quite warm. Other mugs I own are cool after 2-3 hours- the lid locks, so there are no accidental spills when I am carrying several things in my hand- the lid is leak proof. I have other mugs and they drip and leave, and have ruined papers, clothes, and other items. This mug does not leak even if I turn upside down (I only did that to test the leakproof claims...I don't drink coffee upside down).CONS- my main complaint is the build quality of the lid. I take care of my stuff, and I have never dropped my mug. Within a couple of months of owning this, the interior ring of the lid cracked and would not close or seal properly. I tried to adjust it, and then the whole thing broke in half. I emailed regarding warranty replacement because I was well within the warranty period. The company informed that only the insulated mug is covered and I would have to purchase a replacement lid. Luckily I saved my silicone gasket pieces because those must be purchased separately. These replacement parts aren't cheap, but it was cheaper than buying a new mug altogether. I was annoyed, but I made the purchase because I like it and it doesn't leak.- As others have mentioned, the paint has begun chipping in various locations on my mug. I don't abuse my mug at all, so I was surprised by the paint coming off.If you purchase this mug, I think you will pleased with its performance. The quality is suspect, and warranty is not what I expected. Be very careful with how you handle it because it's not the most durable piece of equipment. I am still on the lookout for a better mug, but in the meantime this one keeps my coffee hot and that's good enough for now.4