Thermos Nissan 14-Ounce Stainless-Steel Travel Tumbler

As with many other products on Amazon.com, the "Ultimate" earned pretty much of a bimodal distribution: People seem to basically love or really dislike the "Travel Tumbler." Either the quality control at Nissan is terrible (i.e., people are getting tumblers that differ greatly in quality), or the reviews themselves are just not very reliable. Coffee lovers may be a pretty emotional bunch when it comes to their preferred caffeine delivery method, and some of the complaints seem steeped more in emotion than practicality. I'll try clarifying the bases of my own evaluation, which places the "Ultimate's" performance somewhere between the very good/very bad polarity I see here.

1. LEAKING: Unlike what one person said, it does NOT leak like a "colander." When you squeeze the handle-like mechanism, a small hole at the top of the lid depresses. The problem is that this coffee will drain though the "covered" hole, albeit very slowly: If I lift the cup WITHOUT squeezing the...Read more

This particular Nissan model keeps cold stuff cold and hot stuff hot for *hours* (which is great if you like to drink your coffee or cocoa slowly over the course of a long meetig or classroom seminar), the plastic rim protects your lips from scalding when you go to drink hot liquids, and the narrow body with the rubber grip makes it easy to hold, even for very small hands. I also like the non-spill lever (note it is NOT a handle, and don't try to hold the cup by the lever!) and it keeps the liquid in the mug for all but the most extreme upturns.
The one downside to this model is keeping it clean--I find I have to wrestle it a bit to clean it. The narrow body sometimes poses a challenge for handwashing, and I usually soak the mouthpiece overnight in soapy water. You do have to pull the white ring out to get it really clean. But, franklyu, most of the commuter mugs require special handling to reduce bacteria build-up. All in all, I think it is a good buy. I've enjoyed...Read more

At first I was extremely satisfied with the purchase of this tumbler. However, little did I know what was growing in the little crevices of this deceptively clean and sleek looking mug...
If you don't put milk in your coffee and tea then this is probably the travel mug for you. It keeps drinks cold or hot for hours.
BUT...after just a few weeks of drinking my coffee and cream, I realized how hard it was to clean this mug. It has so many little corners that are IMPOSSIBLE to get to. (I don't understand why someone can't make a travel mug that you can take apart completely to wash thoroughly.) Basically, I had to resort to jabbing knives and forks into these corners to remove the gunk (probably from the fatty content of milk) that quickly started to infiltrate. There is this rubber ring towards the top of the inside of the mug that has a small gap on the underside. If you have one of these mugs but never thought to look under it, I warn you...you will never look at your mug...Read more