Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Customer Service

I purchased 4 of these type floats last year and 2 sprang leaks after use in the lake throughout this summer. I sent email to Swimways (Kelsyus manufacturer) to ask for fix and they sent me 2 new replacements within the same week I sent email! The floats are comfortable and are highlights of time spent out on lake. So, to experience this kind of customer service and overall quickness in response was rare to experience these days. I'd highly recommend.