You get what you pay for, it's expensive but very high quality. I use it with hot coffee and it doesn't spill at all as mentioned in the other reviews. It keeps the coffee hot for many hours (more than I need to drink it)

The ice cubes stay in the glass for about 12 hours. I am impressed. Care should be taken when using hot beverages.

The product is good but it doesn't close well if it falls or if you turn it upside down and it leaks coffee, it maintains a good temperature

I bought it because of the design and color, and because I had a good experience with the previous version, except for the leaks. This particular one, with the new design to avoid leaks, completely disappointed me. Coffee and water (or whatever else is inside) in all the bags, in the car, on the beach towels. I didn't return it because Chillys doesn't advertise it as completely leak proof, but it's sitting in the cupboard and I'm just crying over the 40 euros I spent.

I deliberately bought the 500ml one to have a larger capacity because I had read about leaks. In a double espresso of about 70ml, and placing it upright in a side pocket of a bag, it drips without moving almost at all. The hot coffee after an hour is lukewarm to cold. If you follow the instructions that say the temperature of the liquid you put in should drop below 60 degrees to close the mouthpiece, after an hour the coffee is at room temperature. I have no opinion on cold because I haven't used it. Unacceptable product for 40 euros.

I quite like it, especially for my coffee, whether it's cold or hot. I love it, it holds a sufficient amount and keeps the temperature

I have had it since January. I have tried it with both hot and cold beverages. It leaks all the time, even when it is in an upright position and slightly moved, for example, when walking and in hot temperatures (following the instructions) and in cold temperatures where it shouldn't. It is not worth its money at all. Every time I use it, it's a disaster! I even bought a new lid and still the same issues, so the overall construction is to blame. Even a promotional thermos I have keeps the temperature equally without any leaks!

Certainly, it is a quality that you understand as soon as you hold it. It is excellent in cold temperatures, but I haven't tried it in hot ones yet. Definitely consult the manual as it has instructions for hot temperatures.

Update: 4 stars because it is simply too bulky and does not fit in typical drink holders. This refers to the 500 ml version

Visually it is nice, but it is not waterproof. I have tried putting water, tea (hot, lukewarm, and cold), and coffee (lukewarm) in it. In every case, it leaks. Small drops come out from the lid. In the case of water, it is not important, but in the case of tea and coffee, it stains everything. If I had known, I wouldn't have bought it. If you like the company, buy the corresponding screw-on bottle that is waterproof. The glass is only for flat surfaces, if it is on any incline (in a car, while moving, walking), then it leaks.

I think that there is nothing better than a coffee cup that can fit everything inside!!
Tip: Do not put hot coffee inside and close it because you may have leaks. I made that mistake the first time and learned my lesson. Wait a bit for it to cool down and then close it because the heat expands.