Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great for Awhile..

Well, we absolutely loved the Litter Robot for about 4 months. Then it broke and though we read and re-read the instruction manual and "how to's" online, nothing is working. It's hell trying to fix a Litter Robot that had feces and urine caked everywhere. We took it to the car wash to hose it down and that 'cleaned' it (we didn't hose down the bottom, electric part). Worked amazing for 4 months and now we're back to shoveling nasty stuff out of our old litter boxes. Considering getting a self-cleaning one next time.