That's not a marketing number. It's spaniels in Cornwall, Labs in Leeds, collies in Glasgow - and a lot of owners who told us, in their own words, that this was their last attempt before giving up on nice walks altogether.
Most of them arrived the same way you have: sceptical, out of pocket from the last harness, and half expecting this to be another one for the cupboard. The ones who write back tell us the same two things — it worked on the first walk, and they wish they'd found it a year earlier.