The pipe and packaging on the liberty puffer website looks likes the Sailebao DSE601. Ruyandirect price is very good. My last shipment from them took around 7 days.
Throat hit is very subjective just like opinions on e-liquid flavors. The e-pipe does have a throat hit, but not a powerful one like you would get from a high-voltage vaping device.
I routinely use a 6v DIY mod throughout the day, but I also use the pipe several hours everyday, too. I like the form factor, the tactile experience, the excellent vapor production and the battery life. I no longer use a cartridge and just drip four to five drops, vape it off and repeat. I like it enough that I have three atomizers now.
That said, you have to take your chances and not worry too much about all of our opinions.