AdvantagesGood price, leak free, nice colour choices, solid
DisadvantagesStraw sometimes flips up a bit too easily but it still hasn't leaked
AdvantagesSimple design/styling, easy to use and refill, tight/secure seal, well priced.
DisadvantagesNo real bad points.
AdvantagesWarm and fluffy cover, not too heavy in use, cover can be re-used as a cushion