Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Sonic Alert SB300 Sonic Boom Loud Vibrating Alarm Clock with Large Display

This alarm clock works great. As a Disabled Vietnam vet, I take prescription medications that really knock me out at night; however, the extra-loud alarm sound, along with the shaking of the bed, wakes me out of the deepest sleep every morning. The large time display is easy enough to be clearly read even by those of us who are somewhat visually impaired. The only reason I didn't give the clock a rating of 5 is that, being all plastic and quite thin, the clock is somewhat flimsy and easy to knock over. Nonetheless, if you need something to wake you from a deep sleep in the morning, this is the alarm clock you need.