Nothing about the inks themselves, but I bought a 4 in 1 heat press from this guy and it was the biggest piece of junk I ever saw. Nothing was welded square and the pressure was inconsistant. I requested a refund and had to pay $65 return shipping to canada.
I would never do business with this guy ever again just based on the lack of quality control of the stuff he sells.
The inks are probably Chinese, which means you will have problems with an ICC profile and probably partical size, which may cause clogging of the printheads. This guy is located in Canada, so good luck getting any warranty service. You will have no legal avenues since he is not in this country.
I myself have been looking for an alternative to ArTainum (Sawgrass) as their inks are way to damn expensive. They have a team of lawyers handy and seem eager to put out of business anyone who challanges their market share in the USA. I hate their monopoly and will do anything to find a consistant alternative to these pricks.