IF YOU LIKE COLD WATER AND DON'T LIKE REFILLING MULTIPLE TIMES A DAY GET THIS MUG RIGHT NOW.Okay, but seriously, this mug is amazing. So I bought my first 50oz Reduce mug at the end of 2020 in the plain stainless steel, because it turned out I'm a mighty kidney stone maker and my urologist told me I needed to seriously work on my hydration. The thing is, I'm kind of finicky about my water. I can't drink it if it's not VERY COLD. Lukewarm water makes me 🤢. Also, I don't like refilling again and again throughout the day. So I needed something that could bring me very cold water, pleasant to drink, all day. The reviews on this mug looked promising, and since it can hold 50oz, I thought it seemed like a good idea. When it arrived, I washed it, loaded it with ice water, and promptly fell in love. This thing can hold the cold FOREVER. Okay not literally forever, but for a solid 12 hours or more. Middle of the night thirst? Boom, icy cold water waiting right there. In the morning? Still good to go! I started drinking water like I never have before. I was peeing crystal clear. The mug doesn't leave any weird taste in the water, it's so easy to clean, and it handles heat like a champ. Chonky size notwithstanding, I started taking my mug everywhere. In the car, where it can be left in 100+ degree heat for eight hours and still have ice in it, at work, at the park, everywhere. I love my mug more than any other Amazon purchase ever, and that isn't hyperbole.Pretty soon, EVERYONE wanted to drink my water. My husband, my three kids, everyone was always wanting my water. I found myself filling my mug three or four times a day because everyone was always stealing it and drinking it. Soon everyone was way better hydrated than they ever had been before. They had their own water bottles, but my mug and my icy cold water were the preference by a mile. So we decided, after a year of this nonsense, that it was time for a second mug. Our white one arrived two weeks ago, and wouldn'tya know it, now BOTH mugs get refilled multiple times a day because everyone is drinking *so much* water. We now take both mugs everywhere we go. Having two certainly makes it easier to deal with when everyone in the car wants a turn with the water, so even though its awkward having two giant mugs around all the time, it's worth it. The white one is exactly the same as my trusty stainless, so both get 5/5 stars from me.I know this all seems too good to be true, but seriously everybody in my family drinks so much more water than we ever have before thanks to these mugs. They're fabulous. Get them. The straws a very hard, but it turns out a two year old with jaws of steel can still chew them closed, so if you have chewers in your family, you may need a different option. We bought silicone straws of the same size and that ended the straw-pocalypse. If you have no superhuman chewers to worry about, the straw that comes with the mug is very nice and perfectly adequate for the job.Also the mugs are pretty hardy. Our white one did break a lid when it fell out of the car top-down, but we were able to easily secure a replacement. They've withstood a lot of adventure and love and are still in great condition. We've never had a problem with leaky lids at all. The seal is very good.