Mine has just failed for the second time in a year. I was worried after the first time that I had twisted it badly when "gelling-up", or was wearing it too tight. So I've been really careful with the second one, but it went the same way. I'm sure the people in my gym must think I have Turettes when I start muttering and fiddling with the belt under my vest, then looking in despair at my watch to see if my heart is still beating
I've just sent mine back for the second time under warranty. This time they've sent a replacement Comfort belt - either they recognise (at last) a problem with the standard belt, or they don't have any left
