Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not so great

I bought this to grind grains, such as oats, flax, rice, etc. I just used it for the first time with oats, and it seemed underpowered ( at least as compared to the Krups grinder I used to have--I got water in it and was scared to use it again, which is why I bought this one). Also the lid didn't seem to want to sit on it properly. Wasn't snug at all, like my other coffee-type grinders. The oat powder got all over the outside of the grinder, I'm guessing because the lid wouldn't fit snuggly. Then when I tried to wipe it off, on an upstroke with a towel, the lid came off hit the floor and cracked. Nice for my first use. I think I'll return it.