I kept my distance from remanufactured cartridges, as if they were the plague. Eventually, I decided to try one out. I was not expecting much, but was surprised that the remanufactured cartridge worked for my needs.
I will say this: new "branded" cartridges still seem to work the best. If quality is what you are looking for, use the manufacturer's ink cartridge.
For those who do more than average printing (like myself) but don't need their copies for business or Christmas card-type printing, a remanufactured cartridge fulfills my needs.
In regards to "filling" ink at local drug store chains, I've tried to save money doing this once, and that once was the first and last time I will use them. The copy colors were way off. The printing quality was way under my hopes and expectations.