Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Disappointing life span

This little gadget worked fine at first, creating satisfying frothy coffee drinks. Six times. Yes, it worked six times. New batteries. No luck. Item was not dropped, submerged, or anything that would explain this. Since I only used it for company, it had sat on my shelf for a bit. When I discovered it didn't work anymore, the return period was expired. Very disappointing.