online ink seller

Has anyone had occasion to use printer ink cartridges from a source called www.123inkjets.com? They sell what they call "compatible" cartridges for virtually all name printers--for less than half of the Epson asking price. And their web site, I must say, does inspire confidence.

Though they offer full guarantee for their products, such a guarantee wouldn't do me much good if, for instance, their ink gummed up my Epson 1270.

I have used their ink on a Canon 1950 and seem to work well.
The Canon relacement cost less that half.