Instruct: Classify Amazon reviews into positive or negative sentiment
Query: not so good

We have purchased two CritterTrails and have not been happy with either one. The reason we didn't like this one the shelves would not stay in place. We had two hamsters in it and when they were playing they could knock it down. The litter also gets everywhere. You can't use it without the shelves because the water bottle is to high for them to reach without being on a shelf. It also is not very easy to put together or stay together and hard to clean without taking it all apart. Since cages should only be cleaned when the hamsters are awake that means in the evenings and it took much to long for a night task. The colors are pretty but the cage is not user friendly.