Instruct: Classify Amazon reviews into positive or negative sentiment
Query: BE Cautious before buying!

I have owned several underwater cameras, and the cons outweigh the pros.PROS: Small & light; conversation starter; always accessable; decent pixCONS: Doesn't always work - no reason why it works sometimes and not other times (works fine if you take it out of the case); does not turn on sometimes; Batteries die fast in the cold;OVERALL, more frustrations with it than happiness, hence the low rating.