I have 3 printers. 2 at work and 1 at home. 123inkjet has always had stock and supplied me with my color ink cartridges and my printer toner.
I haven't installed the ink cartridges I just got yet but I don't expect problems since the other cartridges I have previously purchased have performed well.
I always received my order quickly and I haven't had a problem yet. I have ordered with 123inkjet at least 5 times in the past 3 years.