Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great if you don't use it for a smoothie

The problem with this travel cup is that it is VERY difficult to clean if you drink smoothies from it. There are multiple nooks and crannies, including areas where two pieces of plastic come together that form a seam with a space for food to collect. I find it very difficult to clean and I'm not running the dishwasher to clean it every time I use it. If you just need something for tea, coffee, juice, soda (pop), or other cold drinks then I'm sure it will be fine. I'm going to toss it and get one that I can use for smoothies and is easier to keep clean.