Initially
Initially, I thought this was a really good CMG as it gave more information than others I have used.. however, it failed on day 5, it came off, I then looked at the reviews and on trustpilot, and despair of getting any help . However, I emailed the support team., and got an answer within a couple of hours, a very friendly efficient request to send a proof of purchase and the sensor number, I then got a quick reply saying that they would either replace it or refund it . I requested a refund and it came through within 12 hours. So it was different experience to some of the reviews here