I'm quite satisfied with these cups, they're one of the first ones I reach for when getting my daughter a drink. I agree with another reviewer, they are kinda ugly and not the easiest to clean due to shape & design so I'll take a star away for those reasons. With most sippy cups, especially ones with a straw, having a bottle & straw brush is a must to get it cleaned properly. It's not that hard to disassemble/reassemble once you've done it a couple of times. I love the slim design without handles because it fits so nicely into any bag (even my purse) or bottle pocket. I haven't had any issues with leaks except for a couple of times but I think I (or my husband) must have not assembled it properly because it was all good when I took it apart and put it back together. Overall, it's great cup for the price and I'd certainly recommend it.