I've tried Hangsen and Dekang, but I didn't like them. Looked through a few others, but I tried the Mobster Cappuccino from Blackhat and it was just about perfect. Their coffee is ok, but too sweet. It's like coffee with cream and sugar, but I prefer black coffee so I don't want the sweetness, even when I vape it. I also try to stay away from Chinese liquids because if I'm trying a safer alternative, I don't want to risk my health on the chance they do something crazy like use gutter oil.
Oh yeah, did you know that around 80% of all ecigs and liquid are made in Shenzhen, China?