Others say...

"oxo travel mug"
Great looking product and, finally, a coffee mug that does not leak with the lock on....even when it's full and sitting sideways in my purse!!

"Smells and tastes like plastic, go with stainless steel"
I bought and used this coffee mug, and I do not recommend it. The only reason is because my latte or tea tastes and smells like plastic whenever I use this mug. This is made of plastic (polycarbonate) and gives the chemical taste and smell to my drink. Polycarbonates leach hormone-disrupting chemicals into your beverage and also they can not be recycled easily. If you do not want to risk your health and use a more environmentally benign product, just use stainless steel travel mugs. I would go with the stainless steel version of the same brand. The design is nice and the seal works pretty well.

"Good Idea"
OXO Good Grips Plastic LiquiSeal Travel Mug, Textured Blue

I like the no spill lock and the ease of use. The capacity should be 20 oz. The insulation is not enough to keep the outside from becoming a little too hot when filled with boiling water.
Still a good product.

"Never leaks, doesn't keep things too warm. Also, don't soak the lid."
I love this travel mug for two reasons: it's spill proof and it has bad insulation.
I'm a college student, so when I walk to class, I like to have something to keep my hands warm during the winter. Because this mug has bad insulation, all the heat leaks out and makes the mug warm, which makes my hands happy during the winter. I don't really care all that much if my coffee is piping hot... I just want something (relatively) warm to drink in the morning. I'm drinking some coffee right now and it's basically luke warm... it's only been an hour and a half since I made the coffee.

I love the spill proof design because when I'm done with my drink, I just throw it in my bag and don't have to worry about it spilling. I hated all the other travel mugs because they would leak just a little bit. Sugary coffee inside of a laptop bag is absolutely terrible. Because they all leaked, i had to carry the mug around in my hand everywhere. I would always lose them. This mug is great because I can just throw it in my bag and not worry about it.

Some things to remember if you buy this mug: the lid is weird. It's a design that's similar to the "push-to-pour" insulated thermos that I've seen. The problem is that if you don't rinse it out quickly, stuff could probably grow in that cramped, unreachable place. After I'm done with my coffee, I always wash the cup and pour out a full cup of water through the lid. The first time though, I soaked the lid in hot water, thinking it might solve something. The water actually got into the lid itself, so I could hear water sloshing around inside, with no way to get it out. I ended up exchanging the mug for a new one. DON'T SOAK THE LID!

Finally, as mentioned by another reviewer...there is a way for the mug to leak. But it's just a little liquid that remains that doesn't drain back into cup after you seal it. I usually just drink that remaining liquid so it doesn't leak.

Overall, for my weird, specified needs, this mug is perfect. I suspect that this mug is not too great for most people, though.

-wes-

"Awesome leak proof mug!"
Got this for my husband as a stocking stuffer and it's great. It's completely leak proof, even if tipped over, and it keeps coffee warm for about a half hour to an hour.