Instruct: Classify Amazon reviews into positive or negative sentiment
Query: An Omega Mess

I'm not sure why so many people are saying how wonderful this contraption is. But its so not true in my case. The first thing I said was wow this is a great invention....until I got it home. What a waste of money and time. I found myself wondering why the stupid contraption wouldnt allow the litter to "roll" and that stupid plastic "gate" that holds the mess is just too flimsy. Such a waste...