Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: great clock

I bought this clock as a birthday gift for my visually-impaired Mom. She loves it! She says that the numbers are nice and large for her to see without her glasses at night. The clock practically lights up the room. The only down side to this item is that there is no brightness control which really isn't a problem for my Mother, but may be for someone else. It also doesn't have a volume control for the alarm but my Mom says the alarm isn't so loud it'll scare you to death! :-) She loves the feature that allows the clock to set itself when plugged in and set to the proper time zone. So I definitely recommend this clock to anyone who can't really see their clock at night.