Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Isn't it so great?

I bought it and used for almost one month. First time I got it, I felt somewhat disappointed because I thought it's too slow.But I got used to use it, I didn't feel any inconvenience.I'm using it while I read the novel. It doesn't give me any problem. Yeah, sometimes there isn't some word but more than 95% I found the definitions.It's really small and cute.. And very useful.. I will highly recommend this dictionary.