I cannot begin to tell you how many water bottles I have gone through… I have a problem with water bottles. I seemed to be on an endless quest for the right one. I can honestly say that, the quest is over now! This water bottle is absolutely perfect!1. It keeps water cold. I have seen ice in the bottle 3 days later! No, idea how.2. It's a nice size. I have the 32oz one.3. It has a nice little handle to carry it by.4. It seems to be pretty sturdy. It fell off my desk a few times and it's fine. It has a minor dent that is hardly noticeable.Things to know: If you have small hands like I do, you may want to get a little carrier with a handle on the side. I just used one from a previous water bottle. The little rubber seal on the inside may come out. It did for me when I first got it. It hasn't lately. One time, I was confused when I felt some water fall on me. Only to find the little seal in the bottle, lol. So, just be careful when you're washing it. I have noticed that some people claim that it doesn't keep the water cold. My friend recommended this water bottle to me. I know it works for her. I'll just tell you what we do, and it works for us. We fill the water bottle to the top with ice and then, add cold water. Like I said, it keeps the ice for three days for me. Obviously, some ice melts, but some is still in there. I have never taken a sip of water from this thing that wasn't cold. I've had this since last year. I loved this water bottle so much that I ordered another one! It really is the perfect water bottle!