I bought some a few years ago. Coconut Secret is a brand that was recommended to me but I ended up purchasing the store brand at Sprouts. It's a nice, mild vinegar. Not too sharp and it doesn't taste particularly strongly of coconut.
I used it to make the homemade Goan-style chouriço sausage from Nik Sharma's book Season, in several marinades and to make a pineapple coconut shrub.
I need to get some more.
Coconut aminos are not the same thing.