Being a UK vaper, it's not always easy to get hold of US made liquids. But whenever my usual site has Unicorn Blood in stock I'll happily order six or seven 30ml bottles at a time. Really really wish they did actual 120ml bottles of this stuff and not 4x 30ml. It's been my ADV for close to a year now, and I'll judge how good any new RTA or RDA is based on how well it brings out the flavour of UB. I've been trying for months to find something cheaper, but something with the same flavour, but no other liquid has come close for me.
I've tried the vast majority of Fuzion's liquids, and I've probably enjoyed about 90% of them, Narwhal Blood being my second favourite. Can't say anything about customer service as I've never ordered directly from them, buying from my usual vendor ends up being around the same price, just without the risk of shipping from a different country.