Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Carafe leaks...returned after just over one month

Well, I thought I finally found the blender for the family to make fruit smoothies every day with. Bought it the day after Christmas and for the first week, it was a dream. Worked flawlessly...and then the nut holding the blade assembly to the carafe loosened and started leaking.I had read about others who experienced this and hoped that KitchenAid would have fixed it by now, but it looks like they haven't. I was able to tightent it and kept an eye on it every time I was going to use it for the next few weeks. I saw one more time that it got loose, so I tightened it again. But then, yesterday, it leaked again. Only this time, I couldn't tighten the nut no matter what I did! So, I returned it and I'm back to looking for a new blender.I was only blending a mix of frozen fruit, frozen berries, bananas, and apple juice. Nothing else. I can't imagine that combination causing this to break the way it did.